Commit | Line | Data |
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c906108c | 1 | /* Read AIX xcoff symbol tables and convert to internal format, for GDB. |
197e01b6 | 2 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
4c38e0a4 | 3 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, |
7b6bb8da | 4 | 2010, 2011 Free Software Foundation, Inc. |
c906108c SS |
5 | Derived from coffread.c, dbxread.c, and a lot of hacking. |
6 | Contributed by IBM Corporation. | |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 13 | (at your option) any later version. |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b | 20 | You should have received a copy of the GNU General Public License |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include "bfd.h" | |
25 | ||
26 | #include <sys/types.h> | |
27 | #include <fcntl.h> | |
28 | #include <ctype.h> | |
29 | #include "gdb_string.h" | |
30 | ||
31 | #include <sys/param.h> | |
c0ccb908 | 32 | #ifdef HAVE_SYS_FILE_H |
c906108c SS |
33 | #include <sys/file.h> |
34 | #endif | |
35 | #include "gdb_stat.h" | |
36 | ||
37 | #include "coff/internal.h" | |
38 | #include "libcoff.h" /* FIXME, internal data from BFD */ | |
11ed25ac KB |
39 | #include "coff/xcoff.h" |
40 | #include "libxcoff.h" | |
c906108c | 41 | #include "coff/rs6000.h" |
63807e1d | 42 | #include "xcoffread.h" |
c906108c SS |
43 | |
44 | #include "symtab.h" | |
45 | #include "gdbtypes.h" | |
9ab9195f | 46 | /* FIXME: ezannoni/2004-02-13 Verify if the include below is really needed. */ |
c906108c SS |
47 | #include "symfile.h" |
48 | #include "objfiles.h" | |
49 | #include "buildsym.h" | |
50 | #include "stabsread.h" | |
51 | #include "expression.h" | |
c906108c | 52 | #include "complaints.h" |
ccefe4c4 | 53 | #include "psympriv.h" |
c906108c SS |
54 | |
55 | #include "gdb-stabs.h" | |
56 | ||
57 | /* For interface with stabsread.c. */ | |
58 | #include "aout/stab_gnu.h" | |
59 | ||
c906108c SS |
60 | \f |
61 | /* We put a pointer to this structure in the read_symtab_private field | |
62 | of the psymtab. */ | |
63 | ||
c5aa993b JM |
64 | struct symloc |
65 | { | |
c906108c | 66 | |
c5aa993b | 67 | /* First symbol number for this file. */ |
c906108c | 68 | |
c5aa993b | 69 | int first_symnum; |
c906108c | 70 | |
c5aa993b JM |
71 | /* Number of symbols in the section of the symbol table devoted to |
72 | this file's symbols (actually, the section bracketed may contain | |
73 | more than just this file's symbols). If numsyms is 0, the only | |
74 | reason for this thing's existence is the dependency list. Nothing | |
75 | else will happen when it is read in. */ | |
c906108c | 76 | |
c5aa993b | 77 | int numsyms; |
c906108c | 78 | |
3e43a32a MS |
79 | /* Position of the start of the line number information for this |
80 | psymtab. */ | |
c5aa993b JM |
81 | unsigned int lineno_off; |
82 | }; | |
c906108c | 83 | |
581e13c1 | 84 | /* Remember what we deduced to be the source language of this psymtab. */ |
c906108c SS |
85 | |
86 | static enum language psymtab_language = language_unknown; | |
c906108c | 87 | \f |
c5aa993b | 88 | |
581e13c1 | 89 | /* Simplified internal version of coff symbol table information. */ |
c906108c | 90 | |
c5aa993b JM |
91 | struct coff_symbol |
92 | { | |
93 | char *c_name; | |
581e13c1 MS |
94 | int c_symnum; /* Symbol number of this entry. */ |
95 | int c_naux; /* 0 if syment only, 1 if syment + auxent. */ | |
c5aa993b JM |
96 | long c_value; |
97 | unsigned char c_sclass; | |
98 | int c_secnum; | |
99 | unsigned int c_type; | |
100 | }; | |
c906108c | 101 | |
581e13c1 | 102 | /* Last function's saved coff symbol `cs'. */ |
c906108c SS |
103 | |
104 | static struct coff_symbol fcn_cs_saved; | |
105 | ||
106 | static bfd *symfile_bfd; | |
107 | ||
108 | /* Core address of start and end of text of current source file. | |
109 | This is calculated from the first function seen after a C_FILE | |
581e13c1 | 110 | symbol. */ |
c906108c SS |
111 | |
112 | ||
113 | static CORE_ADDR cur_src_end_addr; | |
114 | ||
115 | /* Core address of the end of the first object file. */ | |
116 | ||
117 | static CORE_ADDR first_object_file_end; | |
118 | ||
581e13c1 | 119 | /* Initial symbol-table-debug-string vector length. */ |
c906108c SS |
120 | |
121 | #define INITIAL_STABVECTOR_LENGTH 40 | |
122 | ||
123 | /* Nonzero if within a function (so symbols should be local, | |
124 | if nothing says specifically). */ | |
125 | ||
126 | int within_function; | |
127 | ||
128 | /* Size of a COFF symbol. I think it is always 18, so I'm not sure | |
129 | there is any reason not to just use a #define, but might as well | |
130 | ask BFD for the size and store it here, I guess. */ | |
131 | ||
c5aa993b | 132 | static unsigned local_symesz; |
c906108c | 133 | |
c5aa993b JM |
134 | struct coff_symfile_info |
135 | { | |
581e13c1 MS |
136 | file_ptr min_lineno_offset; /* Where in file lowest line#s are. */ |
137 | file_ptr max_lineno_offset; /* 1+last byte of line#s in file. */ | |
c906108c | 138 | |
c5aa993b JM |
139 | /* Pointer to the string table. */ |
140 | char *strtbl; | |
c906108c | 141 | |
c5aa993b JM |
142 | /* Pointer to debug section. */ |
143 | char *debugsec; | |
c906108c | 144 | |
c5aa993b JM |
145 | /* Pointer to the a.out symbol table. */ |
146 | char *symtbl; | |
c906108c | 147 | |
c5aa993b JM |
148 | /* Number of symbols in symtbl. */ |
149 | int symtbl_num_syms; | |
c906108c | 150 | |
c5aa993b JM |
151 | /* Offset in data section to TOC anchor. */ |
152 | CORE_ADDR toc_offset; | |
153 | }; | |
c906108c | 154 | |
316a8b21 TG |
155 | /* XCOFF names for dwarf sections. There is no compressed sections. */ |
156 | ||
157 | static const struct dwarf2_debug_sections dwarf2_xcoff_names = { | |
158 | { ".dwinfo", NULL }, | |
159 | { ".dwabrev", NULL }, | |
160 | { ".dwline", NULL }, | |
161 | { ".dwloc", NULL }, | |
162 | { NULL, NULL }, /* debug_macinfo */ | |
24d3216f | 163 | { NULL, NULL }, /* debug_macro */ |
316a8b21 TG |
164 | { ".dwstr", NULL }, |
165 | { ".dwrnges", NULL }, | |
166 | { NULL, NULL }, /* debug_types */ | |
167 | { ".dwframe", NULL }, | |
168 | { NULL, NULL }, /* eh_frame */ | |
24d3216f TT |
169 | { NULL, NULL }, /* gdb_index */ |
170 | 23 | |
316a8b21 TG |
171 | }; |
172 | ||
23136709 KB |
173 | static void |
174 | bf_notfound_complaint (void) | |
175 | { | |
3e43a32a MS |
176 | complaint (&symfile_complaints, |
177 | _("line numbers off, `.bf' symbol not found")); | |
23136709 | 178 | } |
c906108c | 179 | |
23136709 KB |
180 | static void |
181 | ef_complaint (int arg1) | |
182 | { | |
183 | complaint (&symfile_complaints, | |
e2e0b3e5 | 184 | _("Mismatched .ef symbol ignored starting at symnum %d"), arg1); |
23136709 | 185 | } |
c906108c | 186 | |
23136709 KB |
187 | static void |
188 | eb_complaint (int arg1) | |
189 | { | |
190 | complaint (&symfile_complaints, | |
e2e0b3e5 | 191 | _("Mismatched .eb symbol ignored starting at symnum %d"), arg1); |
23136709 | 192 | } |
c906108c | 193 | |
a14ed312 | 194 | static void xcoff_initial_scan (struct objfile *, int); |
c906108c | 195 | |
a14ed312 | 196 | static void scan_xcoff_symtab (struct objfile *); |
c906108c | 197 | |
a14ed312 | 198 | static char *xcoff_next_symbol_text (struct objfile *); |
c906108c | 199 | |
a14ed312 | 200 | static void record_include_begin (struct coff_symbol *); |
c906108c SS |
201 | |
202 | static void | |
a14ed312 KB |
203 | enter_line_range (struct subfile *, unsigned, unsigned, |
204 | CORE_ADDR, CORE_ADDR, unsigned *); | |
c906108c | 205 | |
a14ed312 | 206 | static void init_stringtab (bfd *, file_ptr, struct objfile *); |
c906108c | 207 | |
a14ed312 | 208 | static void xcoff_symfile_init (struct objfile *); |
c906108c | 209 | |
a14ed312 | 210 | static void xcoff_new_init (struct objfile *); |
c906108c | 211 | |
a14ed312 | 212 | static void xcoff_symfile_finish (struct objfile *); |
c906108c | 213 | |
570b8f7c AC |
214 | static void xcoff_symfile_offsets (struct objfile *, |
215 | struct section_addr_info *addrs); | |
c906108c | 216 | |
a14ed312 | 217 | static char *coff_getfilename (union internal_auxent *, struct objfile *); |
c906108c | 218 | |
a14ed312 | 219 | static void read_symbol (struct internal_syment *, int); |
c906108c | 220 | |
a14ed312 | 221 | static int read_symbol_lineno (int); |
c906108c | 222 | |
470d5666 | 223 | static CORE_ADDR read_symbol_nvalue (int); |
c906108c | 224 | |
a14ed312 KB |
225 | static struct symbol *process_xcoff_symbol (struct coff_symbol *, |
226 | struct objfile *); | |
c906108c | 227 | |
a14ed312 | 228 | static void read_xcoff_symtab (struct partial_symtab *); |
c906108c SS |
229 | |
230 | #if 0 | |
a14ed312 | 231 | static void add_stab_to_list (char *, struct pending_stabs **); |
c906108c SS |
232 | #endif |
233 | ||
a14ed312 | 234 | static int compare_lte (const void *, const void *); |
c906108c | 235 | |
a14ed312 | 236 | static struct linetable *arrange_linetable (struct linetable *); |
c906108c | 237 | |
a14ed312 | 238 | static void record_include_end (struct coff_symbol *); |
c906108c | 239 | |
a14ed312 | 240 | static void process_linenos (CORE_ADDR, CORE_ADDR); |
c906108c | 241 | \f |
c5aa993b | 242 | |
c906108c SS |
243 | /* Translate from a COFF section number (target_index) to a SECT_OFF_* |
244 | code. */ | |
a14ed312 KB |
245 | static int secnum_to_section (int, struct objfile *); |
246 | static asection *secnum_to_bfd_section (int, struct objfile *); | |
c906108c | 247 | |
c5aa993b JM |
248 | struct find_targ_sec_arg |
249 | { | |
250 | int targ_index; | |
251 | int *resultp; | |
252 | asection **bfd_sect; | |
b8fbeb18 | 253 | struct objfile *objfile; |
c5aa993b | 254 | }; |
c906108c | 255 | |
a14ed312 | 256 | static void find_targ_sec (bfd *, asection *, void *); |
c906108c | 257 | |
c5aa993b | 258 | static void |
4efb68b1 | 259 | find_targ_sec (bfd *abfd, asection *sect, void *obj) |
c906108c | 260 | { |
c5aa993b | 261 | struct find_targ_sec_arg *args = (struct find_targ_sec_arg *) obj; |
b8fbeb18 | 262 | struct objfile *objfile = args->objfile; |
a109c7c1 | 263 | |
c906108c SS |
264 | if (sect->target_index == args->targ_index) |
265 | { | |
266 | /* This is the section. Figure out what SECT_OFF_* code it is. */ | |
267 | if (bfd_get_section_flags (abfd, sect) & SEC_CODE) | |
b8fbeb18 | 268 | *args->resultp = SECT_OFF_TEXT (objfile); |
c906108c | 269 | else if (bfd_get_section_flags (abfd, sect) & SEC_LOAD) |
b8fbeb18 | 270 | *args->resultp = SECT_OFF_DATA (objfile); |
c906108c | 271 | else |
44af9391 | 272 | *args->resultp = sect->index; |
c906108c SS |
273 | *args->bfd_sect = sect; |
274 | } | |
275 | } | |
276 | ||
277 | /* Return the section number (SECT_OFF_*) that CS points to. */ | |
278 | static int | |
fba45db2 | 279 | secnum_to_section (int secnum, struct objfile *objfile) |
c906108c | 280 | { |
b8fbeb18 | 281 | int off = SECT_OFF_TEXT (objfile); |
a109c7c1 | 282 | |
c906108c SS |
283 | asection *sect = NULL; |
284 | struct find_targ_sec_arg args; | |
285 | args.targ_index = secnum; | |
286 | args.resultp = &off; | |
287 | args.bfd_sect = § | |
b8fbeb18 | 288 | args.objfile = objfile; |
c906108c SS |
289 | bfd_map_over_sections (objfile->obfd, find_targ_sec, &args); |
290 | return off; | |
291 | } | |
292 | ||
293 | /* Return the BFD section that CS points to. */ | |
294 | static asection * | |
fba45db2 | 295 | secnum_to_bfd_section (int secnum, struct objfile *objfile) |
c906108c | 296 | { |
b8fbeb18 | 297 | int off = SECT_OFF_TEXT (objfile); |
a109c7c1 | 298 | |
c906108c SS |
299 | asection *sect = NULL; |
300 | struct find_targ_sec_arg args; | |
301 | args.targ_index = secnum; | |
302 | args.resultp = &off; | |
303 | args.bfd_sect = § | |
7a78ae4e | 304 | args.objfile = objfile; |
c906108c SS |
305 | bfd_map_over_sections (objfile->obfd, find_targ_sec, &args); |
306 | return sect; | |
307 | } | |
308 | \f | |
581e13c1 | 309 | /* add a given stab string into given stab vector. */ |
c906108c SS |
310 | |
311 | #if 0 | |
312 | ||
313 | static void | |
fba45db2 | 314 | add_stab_to_list (char *stabname, struct pending_stabs **stabvector) |
c906108c | 315 | { |
c5aa993b JM |
316 | if (*stabvector == NULL) |
317 | { | |
318 | *stabvector = (struct pending_stabs *) | |
319 | xmalloc (sizeof (struct pending_stabs) + | |
320 | INITIAL_STABVECTOR_LENGTH * sizeof (char *)); | |
321 | (*stabvector)->count = 0; | |
322 | (*stabvector)->length = INITIAL_STABVECTOR_LENGTH; | |
323 | } | |
324 | else if ((*stabvector)->count >= (*stabvector)->length) | |
325 | { | |
326 | (*stabvector)->length += INITIAL_STABVECTOR_LENGTH; | |
327 | *stabvector = (struct pending_stabs *) | |
328 | xrealloc ((char *) *stabvector, sizeof (struct pending_stabs) + | |
3e43a32a | 329 | (*stabvector)->length * sizeof (char *)); |
c5aa993b JM |
330 | } |
331 | (*stabvector)->stab[(*stabvector)->count++] = stabname; | |
c906108c SS |
332 | } |
333 | ||
334 | #endif | |
c5aa993b | 335 | \f/* *INDENT-OFF* */ |
c906108c SS |
336 | /* Linenos are processed on a file-by-file basis. |
337 | ||
338 | Two reasons: | |
339 | ||
c5aa993b | 340 | 1) xlc (IBM's native c compiler) postpones static function code |
581e13c1 | 341 | emission to the end of a compilation unit. This way it can |
c5aa993b | 342 | determine if those functions (statics) are needed or not, and |
581e13c1 | 343 | can do some garbage collection (I think). This makes line |
c5aa993b JM |
344 | numbers and corresponding addresses unordered, and we end up |
345 | with a line table like: | |
346 | ||
347 | ||
348 | lineno addr | |
349 | foo() 10 0x100 | |
350 | 20 0x200 | |
351 | 30 0x300 | |
352 | ||
353 | foo3() 70 0x400 | |
354 | 80 0x500 | |
355 | 90 0x600 | |
356 | ||
357 | static foo2() | |
358 | 40 0x700 | |
359 | 50 0x800 | |
360 | 60 0x900 | |
361 | ||
362 | and that breaks gdb's binary search on line numbers, if the | |
581e13c1 | 363 | above table is not sorted on line numbers. And that sort |
c5aa993b JM |
364 | should be on function based, since gcc can emit line numbers |
365 | like: | |
366 | ||
367 | 10 0x100 - for the init/test part of a for stmt. | |
368 | 20 0x200 | |
369 | 30 0x300 | |
370 | 10 0x400 - for the increment part of a for stmt. | |
371 | ||
581e13c1 | 372 | arrange_linetable() will do this sorting. |
c5aa993b JM |
373 | |
374 | 2) aix symbol table might look like: | |
375 | ||
376 | c_file // beginning of a new file | |
377 | .bi // beginning of include file | |
378 | .ei // end of include file | |
379 | .bi | |
380 | .ei | |
381 | ||
382 | basically, .bi/.ei pairs do not necessarily encapsulate | |
581e13c1 | 383 | their scope. They need to be recorded, and processed later |
c5aa993b JM |
384 | on when we come the end of the compilation unit. |
385 | Include table (inclTable) and process_linenos() handle | |
386 | that. */ | |
9846de1b | 387 | /* *INDENT-ON* */ |
c906108c | 388 | |
c5aa993b JM |
389 | |
390 | ||
581e13c1 | 391 | /* compare line table entry addresses. */ |
c906108c SS |
392 | |
393 | static int | |
fba45db2 | 394 | compare_lte (const void *lte1p, const void *lte2p) |
c906108c SS |
395 | { |
396 | struct linetable_entry *lte1 = (struct linetable_entry *) lte1p; | |
397 | struct linetable_entry *lte2 = (struct linetable_entry *) lte2p; | |
a109c7c1 | 398 | |
c906108c SS |
399 | return lte1->pc - lte2->pc; |
400 | } | |
401 | ||
581e13c1 MS |
402 | /* Given a line table with function entries are marked, arrange its |
403 | functions in ascending order and strip off function entry markers | |
404 | and return it in a newly created table. If the old one is good | |
405 | enough, return the old one. */ | |
c906108c SS |
406 | /* FIXME: I think all this stuff can be replaced by just passing |
407 | sort_linevec = 1 to end_symtab. */ | |
408 | ||
409 | static struct linetable * | |
b095261a | 410 | arrange_linetable (struct linetable *oldLineTb) |
c906108c | 411 | { |
c5aa993b JM |
412 | int ii, jj, newline, /* new line count */ |
413 | function_count; /* # of functions */ | |
c906108c | 414 | |
c5aa993b JM |
415 | struct linetable_entry *fentry; /* function entry vector */ |
416 | int fentry_size; /* # of function entries */ | |
417 | struct linetable *newLineTb; /* new line table */ | |
c906108c SS |
418 | |
419 | #define NUM_OF_FUNCTIONS 20 | |
420 | ||
421 | fentry_size = NUM_OF_FUNCTIONS; | |
c5aa993b | 422 | fentry = (struct linetable_entry *) |
c906108c SS |
423 | xmalloc (fentry_size * sizeof (struct linetable_entry)); |
424 | ||
c5aa993b JM |
425 | for (function_count = 0, ii = 0; ii < oldLineTb->nitems; ++ii) |
426 | { | |
c5aa993b | 427 | if (oldLineTb->item[ii].line == 0) |
581e13c1 | 428 | { /* Function entry found. */ |
c5aa993b | 429 | if (function_count >= fentry_size) |
581e13c1 | 430 | { /* Make sure you have room. */ |
c5aa993b JM |
431 | fentry_size *= 2; |
432 | fentry = (struct linetable_entry *) | |
3e43a32a MS |
433 | xrealloc (fentry, |
434 | fentry_size * sizeof (struct linetable_entry)); | |
c5aa993b JM |
435 | } |
436 | fentry[function_count].line = ii; | |
437 | fentry[function_count].pc = oldLineTb->item[ii].pc; | |
438 | ++function_count; | |
439 | } | |
c906108c | 440 | } |
c906108c | 441 | |
c5aa993b JM |
442 | if (function_count == 0) |
443 | { | |
b8c9b27d | 444 | xfree (fentry); |
c5aa993b JM |
445 | return oldLineTb; |
446 | } | |
c906108c | 447 | else if (function_count > 1) |
3e43a32a MS |
448 | qsort (fentry, function_count, |
449 | sizeof (struct linetable_entry), compare_lte); | |
c906108c | 450 | |
581e13c1 | 451 | /* Allocate a new line table. */ |
c906108c SS |
452 | newLineTb = (struct linetable *) |
453 | xmalloc | |
c5aa993b JM |
454 | (sizeof (struct linetable) + |
455 | (oldLineTb->nitems - function_count) * sizeof (struct linetable_entry)); | |
c906108c | 456 | |
581e13c1 MS |
457 | /* If line table does not start with a function beginning, copy up until |
458 | a function begin. */ | |
c906108c SS |
459 | |
460 | newline = 0; | |
461 | if (oldLineTb->item[0].line != 0) | |
c5aa993b JM |
462 | for (newline = 0; |
463 | newline < oldLineTb->nitems && oldLineTb->item[newline].line; ++newline) | |
c906108c SS |
464 | newLineTb->item[newline] = oldLineTb->item[newline]; |
465 | ||
581e13c1 | 466 | /* Now copy function lines one by one. */ |
c906108c | 467 | |
c5aa993b JM |
468 | for (ii = 0; ii < function_count; ++ii) |
469 | { | |
470 | for (jj = fentry[ii].line + 1; | |
471 | jj < oldLineTb->nitems && oldLineTb->item[jj].line != 0; | |
472 | ++jj, ++newline) | |
473 | newLineTb->item[newline] = oldLineTb->item[jj]; | |
474 | } | |
b8c9b27d | 475 | xfree (fentry); |
c906108c | 476 | newLineTb->nitems = oldLineTb->nitems - function_count; |
c5aa993b JM |
477 | return newLineTb; |
478 | } | |
c906108c SS |
479 | |
480 | /* include file support: C_BINCL/C_EINCL pairs will be kept in the | |
581e13c1 | 481 | following `IncludeChain'. At the end of each symtab (end_symtab), |
c906108c | 482 | we will determine if we should create additional symtab's to |
581e13c1 | 483 | represent if (the include files. */ |
c906108c SS |
484 | |
485 | ||
c5aa993b JM |
486 | typedef struct _inclTable |
487 | { | |
488 | char *name; /* include filename */ | |
c906108c SS |
489 | |
490 | /* Offsets to the line table. end points to the last entry which is | |
491 | part of this include file. */ | |
c5aa993b JM |
492 | int begin, end; |
493 | ||
c906108c | 494 | struct subfile *subfile; |
581e13c1 | 495 | unsigned funStartLine; /* Start line # of its function. */ |
c5aa993b JM |
496 | } |
497 | InclTable; | |
c906108c SS |
498 | |
499 | #define INITIAL_INCLUDE_TABLE_LENGTH 20 | |
c5aa993b JM |
500 | static InclTable *inclTable; /* global include table */ |
501 | static int inclIndx; /* last entry to table */ | |
502 | static int inclLength; /* table length */ | |
503 | static int inclDepth; /* nested include depth */ | |
c906108c | 504 | |
a14ed312 | 505 | static void allocate_include_entry (void); |
c906108c SS |
506 | |
507 | static void | |
fba45db2 | 508 | record_include_begin (struct coff_symbol *cs) |
c906108c SS |
509 | { |
510 | if (inclDepth) | |
511 | { | |
512 | /* In xcoff, we assume include files cannot be nested (not in .c files | |
c5aa993b | 513 | of course, but in corresponding .s files.). */ |
c906108c SS |
514 | |
515 | /* This can happen with old versions of GCC. | |
c5aa993b JM |
516 | GCC 2.3.3-930426 does not exhibit this on a test case which |
517 | a user said produced the message for him. */ | |
e2e0b3e5 | 518 | complaint (&symfile_complaints, _("Nested C_BINCL symbols")); |
c906108c SS |
519 | } |
520 | ++inclDepth; | |
521 | ||
522 | allocate_include_entry (); | |
523 | ||
c5aa993b JM |
524 | inclTable[inclIndx].name = cs->c_name; |
525 | inclTable[inclIndx].begin = cs->c_value; | |
c906108c SS |
526 | } |
527 | ||
528 | static void | |
fba45db2 | 529 | record_include_end (struct coff_symbol *cs) |
c906108c | 530 | { |
c5aa993b | 531 | InclTable *pTbl; |
c906108c SS |
532 | |
533 | if (inclDepth == 0) | |
534 | { | |
e2e0b3e5 | 535 | complaint (&symfile_complaints, _("Mismatched C_BINCL/C_EINCL pair")); |
c906108c SS |
536 | } |
537 | ||
538 | allocate_include_entry (); | |
539 | ||
c5aa993b | 540 | pTbl = &inclTable[inclIndx]; |
c906108c SS |
541 | pTbl->end = cs->c_value; |
542 | ||
543 | --inclDepth; | |
544 | ++inclIndx; | |
545 | } | |
546 | ||
547 | static void | |
fba45db2 | 548 | allocate_include_entry (void) |
c906108c SS |
549 | { |
550 | if (inclTable == NULL) | |
551 | { | |
c5aa993b | 552 | inclTable = (InclTable *) |
c906108c SS |
553 | xmalloc (sizeof (InclTable) * INITIAL_INCLUDE_TABLE_LENGTH); |
554 | memset (inclTable, | |
555 | '\0', sizeof (InclTable) * INITIAL_INCLUDE_TABLE_LENGTH); | |
556 | inclLength = INITIAL_INCLUDE_TABLE_LENGTH; | |
557 | inclIndx = 0; | |
558 | } | |
559 | else if (inclIndx >= inclLength) | |
560 | { | |
561 | inclLength += INITIAL_INCLUDE_TABLE_LENGTH; | |
c5aa993b | 562 | inclTable = (InclTable *) |
c906108c | 563 | xrealloc (inclTable, sizeof (InclTable) * inclLength); |
c5aa993b JM |
564 | memset (inclTable + inclLength - INITIAL_INCLUDE_TABLE_LENGTH, |
565 | '\0', sizeof (InclTable) * INITIAL_INCLUDE_TABLE_LENGTH); | |
c906108c SS |
566 | } |
567 | } | |
568 | ||
569 | /* Global variable to pass the psymtab down to all the routines involved | |
570 | in psymtab to symtab processing. */ | |
571 | static struct partial_symtab *this_symtab_psymtab; | |
572 | ||
573 | /* given the start and end addresses of a compilation unit (or a csect, | |
581e13c1 | 574 | at times) process its lines and create appropriate line vectors. */ |
c906108c SS |
575 | |
576 | static void | |
fba45db2 | 577 | process_linenos (CORE_ADDR start, CORE_ADDR end) |
c906108c SS |
578 | { |
579 | int offset, ii; | |
580 | file_ptr max_offset = | |
a109c7c1 MS |
581 | ((struct coff_symfile_info *) this_symtab_psymtab->objfile |
582 | ->deprecated_sym_private)->max_lineno_offset; | |
c906108c SS |
583 | |
584 | /* subfile structure for the main compilation unit. */ | |
585 | struct subfile main_subfile; | |
586 | ||
587 | /* In the main source file, any time we see a function entry, we | |
588 | reset this variable to function's absolute starting line number. | |
589 | All the following line numbers in the function are relative to | |
590 | this, and we record absolute line numbers in record_line(). */ | |
591 | ||
592 | unsigned int main_source_baseline = 0; | |
593 | ||
594 | unsigned *firstLine; | |
595 | ||
596 | offset = | |
c5aa993b | 597 | ((struct symloc *) this_symtab_psymtab->read_symtab_private)->lineno_off; |
c906108c SS |
598 | if (offset == 0) |
599 | goto return_after_cleanup; | |
600 | ||
601 | memset (&main_subfile, '\0', sizeof (main_subfile)); | |
602 | ||
603 | if (inclIndx == 0) | |
581e13c1 MS |
604 | /* All source lines were in the main source file. None in include |
605 | files. */ | |
c906108c | 606 | |
c5aa993b JM |
607 | enter_line_range (&main_subfile, offset, 0, start, end, |
608 | &main_source_baseline); | |
c906108c SS |
609 | |
610 | else | |
611 | { | |
612 | /* There was source with line numbers in include files. */ | |
7a78ae4e ND |
613 | |
614 | int linesz = | |
615 | coff_data (this_symtab_psymtab->objfile->obfd)->local_linesz; | |
c906108c | 616 | main_source_baseline = 0; |
7a78ae4e | 617 | |
c5aa993b | 618 | for (ii = 0; ii < inclIndx; ++ii) |
c906108c SS |
619 | { |
620 | struct subfile *tmpSubfile; | |
621 | ||
622 | /* If there is main file source before include file, enter it. */ | |
623 | if (offset < inclTable[ii].begin) | |
624 | { | |
625 | enter_line_range | |
7a78ae4e | 626 | (&main_subfile, offset, inclTable[ii].begin - linesz, |
c906108c SS |
627 | start, 0, &main_source_baseline); |
628 | } | |
629 | ||
c5933f6d JB |
630 | if (strcmp (inclTable[ii].name, last_source_file) == 0) |
631 | { | |
632 | /* The entry in the include table refers to the main source | |
581e13c1 | 633 | file. Add the lines to the main subfile. */ |
c5933f6d JB |
634 | |
635 | main_source_baseline = inclTable[ii].funStartLine; | |
636 | enter_line_range | |
637 | (&main_subfile, inclTable[ii].begin, inclTable[ii].end, | |
638 | start, 0, &main_source_baseline); | |
639 | inclTable[ii].subfile = &main_subfile; | |
640 | } | |
641 | else | |
642 | { | |
c5933f6d | 643 | /* Have a new subfile for the include file. */ |
c906108c | 644 | |
c5933f6d JB |
645 | tmpSubfile = inclTable[ii].subfile = |
646 | (struct subfile *) xmalloc (sizeof (struct subfile)); | |
c906108c | 647 | |
c5933f6d JB |
648 | memset (tmpSubfile, '\0', sizeof (struct subfile)); |
649 | firstLine = &(inclTable[ii].funStartLine); | |
650 | ||
651 | /* Enter include file's lines now. */ | |
652 | enter_line_range (tmpSubfile, inclTable[ii].begin, | |
653 | inclTable[ii].end, start, 0, firstLine); | |
654 | } | |
c906108c SS |
655 | |
656 | if (offset <= inclTable[ii].end) | |
7a78ae4e | 657 | offset = inclTable[ii].end + linesz; |
c906108c SS |
658 | } |
659 | ||
660 | /* All the include files' line have been processed at this point. Now, | |
c5aa993b | 661 | enter remaining lines of the main file, if any left. */ |
7a78ae4e | 662 | if (offset < max_offset + 1 - linesz) |
c906108c | 663 | { |
c5aa993b | 664 | enter_line_range (&main_subfile, offset, 0, start, end, |
c906108c SS |
665 | &main_source_baseline); |
666 | } | |
667 | } | |
668 | ||
669 | /* Process main file's line numbers. */ | |
670 | if (main_subfile.line_vector) | |
671 | { | |
672 | struct linetable *lineTb, *lv; | |
673 | ||
674 | lv = main_subfile.line_vector; | |
675 | ||
581e13c1 MS |
676 | /* Line numbers are not necessarily ordered. xlc compilation will |
677 | put static function to the end. */ | |
c906108c SS |
678 | |
679 | lineTb = arrange_linetable (lv); | |
680 | if (lv == lineTb) | |
681 | { | |
682 | current_subfile->line_vector = (struct linetable *) | |
683 | xrealloc (lv, (sizeof (struct linetable) | |
684 | + lv->nitems * sizeof (struct linetable_entry))); | |
685 | } | |
686 | else | |
687 | { | |
b8c9b27d | 688 | xfree (lv); |
c906108c SS |
689 | current_subfile->line_vector = lineTb; |
690 | } | |
691 | ||
c5aa993b | 692 | current_subfile->line_vector_length = |
c906108c SS |
693 | current_subfile->line_vector->nitems; |
694 | } | |
695 | ||
696 | /* Now, process included files' line numbers. */ | |
697 | ||
c5aa993b | 698 | for (ii = 0; ii < inclIndx; ++ii) |
c906108c | 699 | { |
c5933f6d | 700 | if (inclTable[ii].subfile != ((struct subfile *) &main_subfile) |
3e43a32a MS |
701 | && (inclTable[ii].subfile)->line_vector) /* Useless if!!! |
702 | FIXMEmgo */ | |
c906108c SS |
703 | { |
704 | struct linetable *lineTb, *lv; | |
705 | ||
706 | lv = (inclTable[ii].subfile)->line_vector; | |
707 | ||
581e13c1 MS |
708 | /* Line numbers are not necessarily ordered. xlc compilation will |
709 | put static function to the end. */ | |
c906108c SS |
710 | |
711 | lineTb = arrange_linetable (lv); | |
712 | ||
713 | push_subfile (); | |
714 | ||
715 | /* For the same include file, we might want to have more than one | |
716 | subfile. This happens if we have something like: | |
717 | ||
c5aa993b JM |
718 | ...... |
719 | #include "foo.h" | |
720 | ...... | |
721 | #include "foo.h" | |
722 | ...... | |
c906108c | 723 | |
581e13c1 | 724 | while foo.h including code in it. (stupid but possible) |
c906108c SS |
725 | Since start_subfile() looks at the name and uses an |
726 | existing one if finds, we need to provide a fake name and | |
727 | fool it. */ | |
728 | ||
729 | #if 0 | |
c5aa993b | 730 | start_subfile (inclTable[ii].name, (char *) 0); |
c906108c SS |
731 | #else |
732 | { | |
733 | /* Pick a fake name that will produce the same results as this | |
734 | one when passed to deduce_language_from_filename. Kludge on | |
735 | top of kludge. */ | |
736 | char *fakename = strrchr (inclTable[ii].name, '.'); | |
a109c7c1 | 737 | |
c906108c SS |
738 | if (fakename == NULL) |
739 | fakename = " ?"; | |
c5aa993b | 740 | start_subfile (fakename, (char *) 0); |
b8c9b27d | 741 | xfree (current_subfile->name); |
c906108c | 742 | } |
c2d11a7d | 743 | current_subfile->name = xstrdup (inclTable[ii].name); |
c906108c SS |
744 | #endif |
745 | ||
746 | if (lv == lineTb) | |
747 | { | |
748 | current_subfile->line_vector = | |
749 | (struct linetable *) xrealloc | |
c5aa993b JM |
750 | (lv, (sizeof (struct linetable) |
751 | + lv->nitems * sizeof (struct linetable_entry))); | |
c906108c SS |
752 | |
753 | } | |
754 | else | |
755 | { | |
b8c9b27d | 756 | xfree (lv); |
c906108c SS |
757 | current_subfile->line_vector = lineTb; |
758 | } | |
759 | ||
c5aa993b | 760 | current_subfile->line_vector_length = |
c906108c | 761 | current_subfile->line_vector->nitems; |
c5aa993b | 762 | start_subfile (pop_subfile (), (char *) 0); |
c906108c SS |
763 | } |
764 | } | |
765 | ||
c5aa993b | 766 | return_after_cleanup: |
c906108c SS |
767 | |
768 | /* We don't want to keep alloc/free'ing the global include file table. */ | |
769 | inclIndx = 0; | |
770 | ||
771 | /* Start with a fresh subfile structure for the next file. */ | |
772 | memset (&main_subfile, '\0', sizeof (struct subfile)); | |
773 | } | |
774 | ||
c295b2e5 | 775 | static void |
fba45db2 | 776 | aix_process_linenos (void) |
c906108c | 777 | { |
316a8b21 TG |
778 | /* There is no linenos to read if there are only dwarf info. */ |
779 | if (this_symtab_psymtab == NULL) | |
780 | return; | |
781 | ||
581e13c1 | 782 | /* Process line numbers and enter them into line vector. */ |
c906108c SS |
783 | process_linenos (last_source_start_addr, cur_src_end_addr); |
784 | } | |
785 | ||
786 | ||
787 | /* Enter a given range of lines into the line vector. | |
788 | can be called in the following two ways: | |
3e43a32a MS |
789 | enter_line_range (subfile, beginoffset, endoffset, |
790 | startaddr, 0, firstLine) or | |
791 | enter_line_range (subfile, beginoffset, 0, | |
792 | startaddr, endaddr, firstLine) | |
c906108c SS |
793 | |
794 | endoffset points to the last line table entry that we should pay | |
795 | attention to. */ | |
796 | ||
797 | static void | |
3e43a32a MS |
798 | enter_line_range (struct subfile *subfile, unsigned beginoffset, |
799 | unsigned endoffset, /* offsets to line table */ | |
fba45db2 KB |
800 | CORE_ADDR startaddr, /* offsets to line table */ |
801 | CORE_ADDR endaddr, unsigned *firstLine) | |
c906108c | 802 | { |
fbf65064 UW |
803 | struct objfile *objfile = this_symtab_psymtab->objfile; |
804 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
c906108c SS |
805 | unsigned int curoffset; |
806 | CORE_ADDR addr; | |
7a78ae4e | 807 | void *ext_lnno; |
c906108c SS |
808 | struct internal_lineno int_lnno; |
809 | unsigned int limit_offset; | |
810 | bfd *abfd; | |
7a78ae4e | 811 | int linesz; |
c906108c SS |
812 | |
813 | if (endoffset == 0 && startaddr == 0 && endaddr == 0) | |
814 | return; | |
815 | curoffset = beginoffset; | |
816 | limit_offset = | |
fbf65064 | 817 | ((struct coff_symfile_info *) objfile->deprecated_sym_private) |
c5aa993b | 818 | ->max_lineno_offset; |
c906108c SS |
819 | |
820 | if (endoffset != 0) | |
821 | { | |
822 | if (endoffset >= limit_offset) | |
823 | { | |
23136709 | 824 | complaint (&symfile_complaints, |
e2e0b3e5 | 825 | _("Bad line table offset in C_EINCL directive")); |
c906108c SS |
826 | return; |
827 | } | |
828 | limit_offset = endoffset; | |
829 | } | |
830 | else | |
831 | limit_offset -= 1; | |
7a78ae4e | 832 | |
fbf65064 | 833 | abfd = objfile->obfd; |
7a78ae4e ND |
834 | linesz = coff_data (abfd)->local_linesz; |
835 | ext_lnno = alloca (linesz); | |
c906108c SS |
836 | |
837 | while (curoffset <= limit_offset) | |
838 | { | |
839 | bfd_seek (abfd, curoffset, SEEK_SET); | |
3a42e9d0 | 840 | bfd_bread (ext_lnno, linesz, abfd); |
7a78ae4e | 841 | bfd_coff_swap_lineno_in (abfd, ext_lnno, &int_lnno); |
c906108c SS |
842 | |
843 | /* Find the address this line represents. */ | |
844 | addr = (int_lnno.l_lnno | |
845 | ? int_lnno.l_addr.l_paddr | |
846 | : read_symbol_nvalue (int_lnno.l_addr.l_symndx)); | |
fbf65064 | 847 | addr += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)); |
c906108c SS |
848 | |
849 | if (addr < startaddr || (endaddr && addr >= endaddr)) | |
850 | return; | |
851 | ||
852 | if (int_lnno.l_lnno == 0) | |
853 | { | |
854 | *firstLine = read_symbol_lineno (int_lnno.l_addr.l_symndx); | |
fbf65064 | 855 | record_line (subfile, 0, gdbarch_addr_bits_remove (gdbarch, addr)); |
c906108c SS |
856 | --(*firstLine); |
857 | } | |
858 | else | |
fbf65064 UW |
859 | record_line (subfile, *firstLine + int_lnno.l_lnno, |
860 | gdbarch_addr_bits_remove (gdbarch, addr)); | |
7a78ae4e | 861 | curoffset += linesz; |
c906108c SS |
862 | } |
863 | } | |
864 | ||
865 | ||
866 | /* Save the vital information for use when closing off the current file. | |
867 | NAME is the file name the symbols came from, START_ADDR is the first | |
868 | text address for the file, and SIZE is the number of bytes of text. */ | |
869 | ||
870 | #define complete_symtab(name, start_addr) { \ | |
1b36a34b JK |
871 | last_source_file = xstrdup (name); \ |
872 | last_source_start_addr = start_addr; \ | |
c906108c SS |
873 | } |
874 | ||
875 | ||
876 | /* Refill the symbol table input buffer | |
877 | and set the variables that control fetching entries from it. | |
878 | Reports an error if no data available. | |
879 | This function can read past the end of the symbol table | |
880 | (into the string table) but this does no harm. */ | |
881 | ||
882 | /* Reading symbol table has to be fast! Keep the followings as macros, rather | |
581e13c1 | 883 | than functions. */ |
c906108c SS |
884 | |
885 | #define RECORD_MINIMAL_SYMBOL(NAME, ADDR, TYPE, SECTION, OBJFILE) \ | |
886 | { \ | |
887 | char *namestr; \ | |
a109c7c1 MS |
888 | \ |
889 | namestr = (NAME); \ | |
890 | if (namestr[0] == '.') ++namestr; \ | |
891 | prim_record_minimal_symbol_and_info (namestr, (ADDR), (TYPE), \ | |
892 | (SECTION), (asection *)NULL, \ | |
893 | (OBJFILE)); \ | |
894 | misc_func_recorded = 1; \ | |
c906108c SS |
895 | } |
896 | ||
897 | ||
581e13c1 MS |
898 | /* xcoff has static blocks marked in `.bs', `.es' pairs. They cannot be |
899 | nested. At any given time, a symbol can only be in one static block. | |
900 | This is the base address of current static block, zero if non exists. */ | |
c5aa993b | 901 | |
c906108c SS |
902 | static int static_block_base = 0; |
903 | ||
904 | /* Section number for the current static block. */ | |
905 | ||
906 | static int static_block_section = -1; | |
907 | ||
581e13c1 | 908 | /* true if space for symbol name has been allocated. */ |
c906108c SS |
909 | |
910 | static int symname_alloced = 0; | |
911 | ||
912 | /* Next symbol to read. Pointer into raw seething symbol table. */ | |
913 | ||
914 | static char *raw_symbol; | |
915 | ||
916 | /* This is the function which stabsread.c calls to get symbol | |
917 | continuations. */ | |
918 | ||
919 | static char * | |
fba45db2 | 920 | xcoff_next_symbol_text (struct objfile *objfile) |
c906108c SS |
921 | { |
922 | struct internal_syment symbol; | |
c906108c | 923 | char *retval; |
a109c7c1 | 924 | |
581e13c1 | 925 | /* FIXME: is this the same as the passed arg? */ |
13c763f4 JB |
926 | if (this_symtab_psymtab) |
927 | objfile = this_symtab_psymtab->objfile; | |
c906108c SS |
928 | |
929 | bfd_coff_swap_sym_in (objfile->obfd, raw_symbol, &symbol); | |
930 | if (symbol.n_zeroes) | |
931 | { | |
e2e0b3e5 | 932 | complaint (&symfile_complaints, _("Unexpected symbol continuation")); |
c906108c SS |
933 | |
934 | /* Return something which points to '\0' and hope the symbol reading | |
c5aa993b | 935 | code does something reasonable. */ |
c906108c SS |
936 | retval = ""; |
937 | } | |
938 | else if (symbol.n_sclass & 0x80) | |
939 | { | |
3e43a32a MS |
940 | retval = ((struct coff_symfile_info *) |
941 | objfile->deprecated_sym_private)->debugsec | |
c5aa993b | 942 | + symbol.n_offset; |
3e43a32a | 943 | raw_symbol += coff_data (objfile->obfd)->local_symesz; |
c906108c SS |
944 | ++symnum; |
945 | } | |
946 | else | |
947 | { | |
e2e0b3e5 | 948 | complaint (&symfile_complaints, _("Unexpected symbol continuation")); |
c906108c SS |
949 | |
950 | /* Return something which points to '\0' and hope the symbol reading | |
c5aa993b | 951 | code does something reasonable. */ |
c906108c SS |
952 | retval = ""; |
953 | } | |
954 | return retval; | |
955 | } | |
956 | ||
957 | /* Read symbols for a given partial symbol table. */ | |
958 | ||
959 | static void | |
fba45db2 | 960 | read_xcoff_symtab (struct partial_symtab *pst) |
c906108c SS |
961 | { |
962 | struct objfile *objfile = pst->objfile; | |
963 | bfd *abfd = objfile->obfd; | |
581e13c1 | 964 | char *raw_auxptr; /* Pointer to first raw aux entry for sym. */ |
a109c7c1 MS |
965 | char *strtbl = |
966 | ((struct coff_symfile_info *) objfile->deprecated_sym_private)->strtbl; | |
c906108c | 967 | char *debugsec = |
a109c7c1 | 968 | ((struct coff_symfile_info *) objfile->deprecated_sym_private)->debugsec; |
554d387d | 969 | const char *debugfmt = bfd_xcoff_is_xcoff64 (abfd) ? "XCOFF64" : "XCOFF"; |
c906108c SS |
970 | |
971 | struct internal_syment symbol[1]; | |
972 | union internal_auxent main_aux; | |
973 | struct coff_symbol cs[1]; | |
974 | CORE_ADDR file_start_addr = 0; | |
975 | CORE_ADDR file_end_addr = 0; | |
976 | ||
977 | int next_file_symnum = -1; | |
978 | unsigned int max_symnum; | |
979 | int just_started = 1; | |
980 | int depth = 0; | |
981 | int fcn_start_addr = 0; | |
982 | ||
238ae9af | 983 | struct coff_symbol fcn_stab_saved = { 0 }; |
c906108c | 984 | |
581e13c1 | 985 | /* fcn_cs_saved is global because process_xcoff_symbol needs it. */ |
3672b1be | 986 | union internal_auxent fcn_aux_saved = main_aux; |
c906108c SS |
987 | struct context_stack *new; |
988 | ||
581e13c1 | 989 | char *filestring = " _start_ "; /* Name of the current file. */ |
c906108c | 990 | |
581e13c1 | 991 | char *last_csect_name; /* Last seen csect's name and value. */ |
c906108c SS |
992 | CORE_ADDR last_csect_val; |
993 | int last_csect_sec; | |
994 | ||
995 | this_symtab_psymtab = pst; | |
996 | ||
997 | /* Get the appropriate COFF "constants" related to the file we're | |
581e13c1 | 998 | handling. */ |
c906108c SS |
999 | local_symesz = coff_data (abfd)->local_symesz; |
1000 | ||
1001 | last_source_file = NULL; | |
1002 | last_csect_name = 0; | |
1003 | last_csect_val = 0; | |
1004 | ||
1005 | start_stabs (); | |
c5aa993b | 1006 | start_symtab (filestring, (char *) NULL, file_start_addr); |
7a78ae4e | 1007 | record_debugformat (debugfmt); |
c5aa993b | 1008 | symnum = ((struct symloc *) pst->read_symtab_private)->first_symnum; |
c906108c | 1009 | max_symnum = |
c5aa993b | 1010 | symnum + ((struct symloc *) pst->read_symtab_private)->numsyms; |
c906108c SS |
1011 | first_object_file_end = 0; |
1012 | ||
1013 | raw_symbol = | |
0a6ddd08 | 1014 | ((struct coff_symfile_info *) objfile->deprecated_sym_private)->symtbl |
c5aa993b | 1015 | + symnum * local_symesz; |
c906108c SS |
1016 | |
1017 | while (symnum < max_symnum) | |
1018 | { | |
c906108c SS |
1019 | QUIT; /* make this command interruptable. */ |
1020 | ||
1021 | /* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */ | |
581e13c1 | 1022 | /* read one symbol into `cs' structure. After processing the |
c5aa993b | 1023 | whole symbol table, only string table will be kept in memory, |
581e13c1 | 1024 | symbol table and debug section of xcoff will be freed. Thus |
c5aa993b | 1025 | we can mark symbols with names in string table as |
581e13c1 | 1026 | `alloced'. */ |
c906108c SS |
1027 | { |
1028 | int ii; | |
1029 | ||
1030 | /* Swap and align the symbol into a reasonable C structure. */ | |
1031 | bfd_coff_swap_sym_in (abfd, raw_symbol, symbol); | |
1032 | ||
1033 | cs->c_symnum = symnum; | |
1034 | cs->c_naux = symbol->n_numaux; | |
1035 | if (symbol->n_zeroes) | |
1036 | { | |
1037 | symname_alloced = 0; | |
1038 | /* We must use the original, unswapped, name here so the name field | |
1039 | pointed to by cs->c_name will persist throughout xcoffread. If | |
1040 | we use the new field, it gets overwritten for each symbol. */ | |
c5aa993b | 1041 | cs->c_name = ((struct external_syment *) raw_symbol)->e.e_name; |
c906108c SS |
1042 | /* If it's exactly E_SYMNMLEN characters long it isn't |
1043 | '\0'-terminated. */ | |
1044 | if (cs->c_name[E_SYMNMLEN - 1] != '\0') | |
1045 | { | |
1046 | char *p; | |
a109c7c1 | 1047 | |
4a146b47 | 1048 | p = obstack_alloc (&objfile->objfile_obstack, E_SYMNMLEN + 1); |
c906108c SS |
1049 | strncpy (p, cs->c_name, E_SYMNMLEN); |
1050 | p[E_SYMNMLEN] = '\0'; | |
1051 | cs->c_name = p; | |
1052 | symname_alloced = 1; | |
1053 | } | |
1054 | } | |
1055 | else if (symbol->n_sclass & 0x80) | |
1056 | { | |
1057 | cs->c_name = debugsec + symbol->n_offset; | |
1058 | symname_alloced = 0; | |
1059 | } | |
1060 | else | |
1061 | { | |
1062 | /* in string table */ | |
c5aa993b | 1063 | cs->c_name = strtbl + (int) symbol->n_offset; |
c906108c SS |
1064 | symname_alloced = 1; |
1065 | } | |
1066 | cs->c_value = symbol->n_value; | |
1067 | cs->c_sclass = symbol->n_sclass; | |
1068 | cs->c_secnum = symbol->n_scnum; | |
c5aa993b | 1069 | cs->c_type = (unsigned) symbol->n_type; |
c906108c | 1070 | |
7a78ae4e | 1071 | raw_symbol += local_symesz; |
c906108c SS |
1072 | ++symnum; |
1073 | ||
1074 | /* Save addr of first aux entry. */ | |
1075 | raw_auxptr = raw_symbol; | |
1076 | ||
1077 | /* Skip all the auxents associated with this symbol. */ | |
1078 | for (ii = symbol->n_numaux; ii; --ii) | |
1079 | { | |
1080 | raw_symbol += coff_data (abfd)->local_auxesz; | |
1081 | ++symnum; | |
1082 | } | |
1083 | } | |
1084 | ||
581e13c1 | 1085 | /* if symbol name starts with ".$" or "$", ignore it. */ |
c906108c SS |
1086 | if (cs->c_name[0] == '$' |
1087 | || (cs->c_name[1] == '$' && cs->c_name[0] == '.')) | |
1088 | continue; | |
1089 | ||
1090 | if (cs->c_symnum == next_file_symnum && cs->c_sclass != C_FILE) | |
1091 | { | |
1092 | if (last_source_file) | |
1093 | { | |
3e43a32a MS |
1094 | pst->symtab = end_symtab (cur_src_end_addr, objfile, |
1095 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
1096 | end_stabs (); |
1097 | } | |
1098 | ||
1099 | start_stabs (); | |
c5aa993b | 1100 | start_symtab ("_globals_", (char *) NULL, (CORE_ADDR) 0); |
7a78ae4e | 1101 | record_debugformat (debugfmt); |
c906108c | 1102 | cur_src_end_addr = first_object_file_end; |
581e13c1 | 1103 | /* Done with all files, everything from here on is globals. */ |
c906108c SS |
1104 | } |
1105 | ||
c906108c SS |
1106 | if ((cs->c_sclass == C_EXT || cs->c_sclass == C_HIDEXT) |
1107 | && cs->c_naux == 1) | |
1108 | { | |
1109 | /* Dealing with a symbol with a csect entry. */ | |
1110 | ||
1111 | #define CSECT(PP) ((PP)->x_csect) | |
1112 | #define CSECT_LEN(PP) (CSECT(PP).x_scnlen.l) | |
1113 | #define CSECT_ALIGN(PP) (SMTYP_ALIGN(CSECT(PP).x_smtyp)) | |
1114 | #define CSECT_SMTYP(PP) (SMTYP_SMTYP(CSECT(PP).x_smtyp)) | |
1115 | #define CSECT_SCLAS(PP) (CSECT(PP).x_smclas) | |
1116 | ||
1117 | /* Convert the auxent to something we can access. */ | |
1118 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1119 | 0, cs->c_naux, &main_aux); | |
1120 | ||
1121 | switch (CSECT_SMTYP (&main_aux)) | |
1122 | { | |
1123 | ||
1124 | case XTY_ER: | |
1125 | /* Ignore all external references. */ | |
1126 | continue; | |
1127 | ||
1128 | case XTY_SD: | |
1129 | /* A section description. */ | |
1130 | { | |
1131 | switch (CSECT_SCLAS (&main_aux)) | |
1132 | { | |
1133 | ||
1134 | case XMC_PR: | |
1135 | { | |
1136 | ||
1137 | /* A program csect is seen. We have to allocate one | |
c5aa993b JM |
1138 | symbol table for each program csect. Normally gdb |
1139 | prefers one symtab for each source file. In case | |
1140 | of AIX, one source file might include more than one | |
1141 | [PR] csect, and they don't have to be adjacent in | |
581e13c1 | 1142 | terms of the space they occupy in memory. Thus, one |
c5aa993b JM |
1143 | single source file might get fragmented in the |
1144 | memory and gdb's file start and end address | |
1145 | approach does not work! GCC (and I think xlc) seem | |
1146 | to put all the code in the unnamed program csect. */ | |
c906108c SS |
1147 | |
1148 | if (last_csect_name) | |
1149 | { | |
1150 | complete_symtab (filestring, file_start_addr); | |
1151 | cur_src_end_addr = file_end_addr; | |
3e43a32a MS |
1152 | end_symtab (file_end_addr, objfile, |
1153 | SECT_OFF_TEXT (objfile)); | |
c906108c SS |
1154 | end_stabs (); |
1155 | start_stabs (); | |
1156 | /* Give all csects for this source file the same | |
1157 | name. */ | |
c5aa993b | 1158 | start_symtab (filestring, NULL, (CORE_ADDR) 0); |
7a78ae4e | 1159 | record_debugformat (debugfmt); |
c906108c SS |
1160 | } |
1161 | ||
1162 | /* If this is the very first csect seen, | |
581e13c1 | 1163 | basically `__start'. */ |
c906108c SS |
1164 | if (just_started) |
1165 | { | |
1166 | first_object_file_end | |
1167 | = cs->c_value + CSECT_LEN (&main_aux); | |
1168 | just_started = 0; | |
1169 | } | |
1170 | ||
1171 | file_start_addr = | |
1172 | cs->c_value + ANOFFSET (objfile->section_offsets, | |
b8fbeb18 | 1173 | SECT_OFF_TEXT (objfile)); |
c906108c SS |
1174 | file_end_addr = file_start_addr + CSECT_LEN (&main_aux); |
1175 | ||
977adac5 ND |
1176 | if (cs->c_name && (cs->c_name[0] == '.' |
1177 | || cs->c_name[0] == '@')) | |
c906108c SS |
1178 | { |
1179 | last_csect_name = cs->c_name; | |
1180 | last_csect_val = cs->c_value; | |
3e43a32a MS |
1181 | last_csect_sec = secnum_to_section (cs->c_secnum, |
1182 | objfile); | |
c906108c SS |
1183 | } |
1184 | } | |
1185 | continue; | |
1186 | ||
1187 | /* All other symbols are put into the minimal symbol | |
1188 | table only. */ | |
1189 | ||
1190 | case XMC_RW: | |
1191 | continue; | |
1192 | ||
1193 | case XMC_TC0: | |
1194 | continue; | |
1195 | ||
1196 | case XMC_TC: | |
1197 | continue; | |
1198 | ||
1199 | default: | |
1200 | /* Ignore the symbol. */ | |
1201 | continue; | |
1202 | } | |
1203 | } | |
1204 | break; | |
1205 | ||
1206 | case XTY_LD: | |
1207 | ||
1208 | switch (CSECT_SCLAS (&main_aux)) | |
1209 | { | |
1210 | case XMC_PR: | |
581e13c1 | 1211 | /* a function entry point. */ |
c906108c SS |
1212 | function_entry_point: |
1213 | ||
1214 | fcn_start_addr = cs->c_value; | |
1215 | ||
1216 | /* save the function header info, which will be used | |
581e13c1 | 1217 | when `.bf' is seen. */ |
c906108c SS |
1218 | fcn_cs_saved = *cs; |
1219 | fcn_aux_saved = main_aux; | |
1220 | continue; | |
1221 | ||
1222 | case XMC_GL: | |
581e13c1 | 1223 | /* shared library function trampoline code entry point. */ |
c906108c SS |
1224 | continue; |
1225 | ||
1226 | case XMC_DS: | |
1227 | /* The symbols often have the same names as debug symbols for | |
1228 | functions, and confuse lookup_symbol. */ | |
1229 | continue; | |
1230 | ||
1231 | default: | |
1232 | /* xlc puts each variable in a separate csect, so we get | |
1233 | an XTY_SD for each variable. But gcc puts several | |
1234 | variables in a csect, so that each variable only gets | |
581e13c1 | 1235 | an XTY_LD. This will typically be XMC_RW; I suspect |
c906108c SS |
1236 | XMC_RO and XMC_BS might be possible too. |
1237 | These variables are put in the minimal symbol table | |
1238 | only. */ | |
1239 | continue; | |
1240 | } | |
1241 | break; | |
1242 | ||
1243 | case XTY_CM: | |
1244 | /* Common symbols are put into the minimal symbol table only. */ | |
1245 | continue; | |
1246 | ||
1247 | default: | |
1248 | break; | |
1249 | } | |
1250 | } | |
1251 | ||
977adac5 ND |
1252 | /* If explicitly specified as a function, treat is as one. This check |
1253 | evaluates to true for @FIX* bigtoc CSECT symbols, so it must occur | |
1254 | after the above CSECT check. */ | |
1255 | if (ISFCN (cs->c_type) && cs->c_sclass != C_TPDEF) | |
1256 | { | |
1257 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1258 | 0, cs->c_naux, &main_aux); | |
1259 | goto function_entry_point; | |
1260 | } | |
1261 | ||
c906108c SS |
1262 | switch (cs->c_sclass) |
1263 | { | |
c906108c SS |
1264 | case C_FILE: |
1265 | ||
1266 | /* c_value field contains symnum of next .file entry in table | |
581e13c1 | 1267 | or symnum of first global after last .file. */ |
c906108c SS |
1268 | |
1269 | next_file_symnum = cs->c_value; | |
1270 | ||
1271 | /* Complete symbol table for last object file containing | |
581e13c1 | 1272 | debugging information. */ |
c906108c SS |
1273 | |
1274 | /* Whether or not there was a csect in the previous file, we | |
1275 | have to call `end_stabs' and `start_stabs' to reset | |
1276 | type_vector, line_vector, etc. structures. */ | |
1277 | ||
1278 | complete_symtab (filestring, file_start_addr); | |
1279 | cur_src_end_addr = file_end_addr; | |
b8fbeb18 | 1280 | end_symtab (file_end_addr, objfile, SECT_OFF_TEXT (objfile)); |
c906108c SS |
1281 | end_stabs (); |
1282 | ||
3e43a32a MS |
1283 | /* XCOFF, according to the AIX 3.2 documentation, puts the |
1284 | filename in cs->c_name. But xlc 1.3.0.2 has decided to | |
1285 | do things the standard COFF way and put it in the auxent. | |
1286 | We use the auxent if the symbol is ".file" and an auxent | |
1287 | exists, otherwise use the symbol itself. Simple | |
1288 | enough. */ | |
c906108c SS |
1289 | if (!strcmp (cs->c_name, ".file") && cs->c_naux > 0) |
1290 | { | |
1291 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, | |
1292 | 0, cs->c_naux, &main_aux); | |
1293 | filestring = coff_getfilename (&main_aux, objfile); | |
1294 | } | |
1295 | else | |
1296 | filestring = cs->c_name; | |
1297 | ||
1298 | start_stabs (); | |
c5aa993b | 1299 | start_symtab (filestring, (char *) NULL, (CORE_ADDR) 0); |
7a78ae4e | 1300 | record_debugformat (debugfmt); |
c906108c SS |
1301 | last_csect_name = 0; |
1302 | ||
581e13c1 | 1303 | /* reset file start and end addresses. A compilation unit |
3e43a32a | 1304 | with no text (only data) should have zero file |
581e13c1 | 1305 | boundaries. */ |
c906108c SS |
1306 | file_start_addr = file_end_addr = 0; |
1307 | break; | |
1308 | ||
1309 | case C_FUN: | |
1310 | fcn_stab_saved = *cs; | |
1311 | break; | |
1312 | ||
1313 | case C_FCN: | |
7ecb6532 | 1314 | if (strcmp (cs->c_name, ".bf") == 0) |
c906108c SS |
1315 | { |
1316 | CORE_ADDR off = ANOFFSET (objfile->section_offsets, | |
b8fbeb18 | 1317 | SECT_OFF_TEXT (objfile)); |
a109c7c1 | 1318 | |
c906108c SS |
1319 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, |
1320 | 0, cs->c_naux, &main_aux); | |
1321 | ||
1322 | within_function = 1; | |
1323 | ||
1324 | new = push_context (0, fcn_start_addr + off); | |
1325 | ||
c5aa993b | 1326 | new->name = define_symbol |
c906108c SS |
1327 | (fcn_cs_saved.c_value + off, |
1328 | fcn_stab_saved.c_name, 0, 0, objfile); | |
1329 | if (new->name != NULL) | |
b8fbeb18 | 1330 | SYMBOL_SECTION (new->name) = SECT_OFF_TEXT (objfile); |
c906108c | 1331 | } |
7ecb6532 | 1332 | else if (strcmp (cs->c_name, ".ef") == 0) |
c906108c | 1333 | { |
c906108c SS |
1334 | bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass, |
1335 | 0, cs->c_naux, &main_aux); | |
1336 | ||
1337 | /* The value of .ef is the address of epilogue code; | |
c5aa993b | 1338 | not useful for gdb. */ |
c906108c | 1339 | /* { main_aux.x_sym.x_misc.x_lnsz.x_lnno |
c5aa993b | 1340 | contains number of lines to '}' */ |
c906108c SS |
1341 | |
1342 | if (context_stack_depth <= 0) | |
581e13c1 | 1343 | { /* We attempted to pop an empty context stack. */ |
23136709 | 1344 | ef_complaint (cs->c_symnum); |
c906108c SS |
1345 | within_function = 0; |
1346 | break; | |
1347 | } | |
1348 | new = pop_context (); | |
1349 | /* Stack must be empty now. */ | |
1350 | if (context_stack_depth > 0 || new == NULL) | |
1351 | { | |
23136709 | 1352 | ef_complaint (cs->c_symnum); |
c906108c SS |
1353 | within_function = 0; |
1354 | break; | |
1355 | } | |
1356 | ||
1357 | finish_block (new->name, &local_symbols, new->old_blocks, | |
1358 | new->start_addr, | |
1359 | (fcn_cs_saved.c_value | |
1360 | + fcn_aux_saved.x_sym.x_misc.x_fsize | |
1361 | + ANOFFSET (objfile->section_offsets, | |
b8fbeb18 | 1362 | SECT_OFF_TEXT (objfile))), |
c906108c SS |
1363 | objfile); |
1364 | within_function = 0; | |
1365 | } | |
1366 | break; | |
1367 | ||
1368 | case C_BSTAT: | |
1369 | /* Begin static block. */ | |
1370 | { | |
1371 | struct internal_syment symbol; | |
1372 | ||
1373 | read_symbol (&symbol, cs->c_value); | |
1374 | static_block_base = symbol.n_value; | |
1375 | static_block_section = | |
1376 | secnum_to_section (symbol.n_scnum, objfile); | |
1377 | } | |
1378 | break; | |
1379 | ||
1380 | case C_ESTAT: | |
1381 | /* End of static block. */ | |
1382 | static_block_base = 0; | |
1383 | static_block_section = -1; | |
1384 | break; | |
1385 | ||
1386 | case C_ARG: | |
1387 | case C_REGPARM: | |
1388 | case C_REG: | |
1389 | case C_TPDEF: | |
1390 | case C_STRTAG: | |
1391 | case C_UNTAG: | |
1392 | case C_ENTAG: | |
1393 | { | |
3e43a32a MS |
1394 | complaint (&symfile_complaints, |
1395 | _("Unrecognized storage class %d."), | |
23136709 | 1396 | cs->c_sclass); |
c906108c SS |
1397 | } |
1398 | break; | |
1399 | ||
1400 | case C_LABEL: | |
1401 | case C_NULL: | |
1402 | /* Ignore these. */ | |
1403 | break; | |
1404 | ||
1405 | case C_HIDEXT: | |
1406 | case C_STAT: | |
1407 | break; | |
1408 | ||
1409 | case C_BINCL: | |
1410 | /* beginning of include file */ | |
1411 | /* In xlc output, C_BINCL/C_EINCL pair doesn't show up in sorted | |
581e13c1 MS |
1412 | order. Thus, when wee see them, we might not know enough info |
1413 | to process them. Thus, we'll be saving them into a table | |
1414 | (inclTable) and postpone their processing. */ | |
c906108c SS |
1415 | |
1416 | record_include_begin (cs); | |
1417 | break; | |
1418 | ||
1419 | case C_EINCL: | |
1420 | /* End of include file. */ | |
1421 | /* See the comment after case C_BINCL. */ | |
1422 | record_include_end (cs); | |
1423 | break; | |
1424 | ||
1425 | case C_BLOCK: | |
7ecb6532 | 1426 | if (strcmp (cs->c_name, ".bb") == 0) |
c906108c SS |
1427 | { |
1428 | depth++; | |
1429 | new = push_context (depth, | |
1430 | (cs->c_value | |
1431 | + ANOFFSET (objfile->section_offsets, | |
b8fbeb18 | 1432 | SECT_OFF_TEXT (objfile)))); |
c906108c | 1433 | } |
7ecb6532 | 1434 | else if (strcmp (cs->c_name, ".eb") == 0) |
c906108c SS |
1435 | { |
1436 | if (context_stack_depth <= 0) | |
581e13c1 | 1437 | { /* We attempted to pop an empty context stack. */ |
23136709 | 1438 | eb_complaint (cs->c_symnum); |
c906108c SS |
1439 | break; |
1440 | } | |
1441 | new = pop_context (); | |
1442 | if (depth-- != new->depth) | |
1443 | { | |
23136709 | 1444 | eb_complaint (cs->c_symnum); |
c906108c SS |
1445 | break; |
1446 | } | |
1447 | if (local_symbols && context_stack_depth > 0) | |
1448 | { | |
1449 | /* Make a block for the local symbols within. */ | |
1450 | finish_block (new->name, &local_symbols, new->old_blocks, | |
1451 | new->start_addr, | |
1452 | (cs->c_value | |
1453 | + ANOFFSET (objfile->section_offsets, | |
b8fbeb18 | 1454 | SECT_OFF_TEXT (objfile))), |
c906108c SS |
1455 | objfile); |
1456 | } | |
1457 | local_symbols = new->locals; | |
1458 | } | |
1459 | break; | |
1460 | ||
1461 | default: | |
1462 | process_xcoff_symbol (cs, objfile); | |
1463 | break; | |
1464 | } | |
1465 | } | |
1466 | ||
1467 | if (last_source_file) | |
1468 | { | |
1469 | struct symtab *s; | |
1470 | ||
1471 | complete_symtab (filestring, file_start_addr); | |
1472 | cur_src_end_addr = file_end_addr; | |
b8fbeb18 | 1473 | s = end_symtab (file_end_addr, objfile, SECT_OFF_TEXT (objfile)); |
c906108c SS |
1474 | /* When reading symbols for the last C_FILE of the objfile, try |
1475 | to make sure that we set pst->symtab to the symtab for the | |
1476 | file, not to the _globals_ symtab. I'm not sure whether this | |
1477 | actually works right or when/if it comes up. */ | |
1478 | if (pst->symtab == NULL) | |
1479 | pst->symtab = s; | |
1480 | end_stabs (); | |
1481 | } | |
1482 | } | |
1483 | ||
1484 | #define SYMBOL_DUP(SYMBOL1, SYMBOL2) \ | |
1485 | (SYMBOL2) = (struct symbol *) \ | |
4a146b47 | 1486 | obstack_alloc (&objfile->objfile_obstack, sizeof (struct symbol)); \ |
c906108c | 1487 | *(SYMBOL2) = *(SYMBOL1); |
c5aa993b JM |
1488 | |
1489 | ||
c906108c | 1490 | #define SYMNAME_ALLOC(NAME, ALLOCED) \ |
3e43a32a MS |
1491 | ((ALLOCED) ? (NAME) : obsavestring ((NAME), strlen (NAME), \ |
1492 | &objfile->objfile_obstack)) | |
c906108c SS |
1493 | |
1494 | ||
581e13c1 | 1495 | /* process one xcoff symbol. */ |
c906108c SS |
1496 | |
1497 | static struct symbol * | |
aa1ee363 | 1498 | process_xcoff_symbol (struct coff_symbol *cs, struct objfile *objfile) |
c906108c SS |
1499 | { |
1500 | struct symbol onesymbol; | |
52f0bd74 | 1501 | struct symbol *sym = &onesymbol; |
c906108c SS |
1502 | struct symbol *sym2 = NULL; |
1503 | char *name, *pp; | |
1504 | ||
1505 | int sec; | |
1506 | CORE_ADDR off; | |
1507 | ||
1508 | if (cs->c_secnum < 0) | |
1509 | { | |
1510 | /* The value is a register number, offset within a frame, etc., | |
c5aa993b | 1511 | and does not get relocated. */ |
c906108c SS |
1512 | off = 0; |
1513 | sec = -1; | |
1514 | } | |
1515 | else | |
1516 | { | |
1517 | sec = secnum_to_section (cs->c_secnum, objfile); | |
1518 | off = ANOFFSET (objfile->section_offsets, sec); | |
1519 | } | |
1520 | ||
1521 | name = cs->c_name; | |
1522 | if (name[0] == '.') | |
1523 | ++name; | |
1524 | ||
1525 | memset (sym, '\0', sizeof (struct symbol)); | |
1526 | ||
1527 | /* default assumptions */ | |
7a78ae4e | 1528 | SYMBOL_VALUE_ADDRESS (sym) = cs->c_value + off; |
176620f1 | 1529 | SYMBOL_DOMAIN (sym) = VAR_DOMAIN; |
c906108c SS |
1530 | SYMBOL_SECTION (sym) = secnum_to_section (cs->c_secnum, objfile); |
1531 | ||
1532 | if (ISFCN (cs->c_type)) | |
1533 | { | |
1534 | /* At this point, we don't know the type of the function. This | |
c5aa993b JM |
1535 | will be patched with the type from its stab entry later on in |
1536 | patch_block_stabs (), unless the file was compiled without -g. */ | |
c906108c | 1537 | |
3567439c | 1538 | SYMBOL_SET_LINKAGE_NAME (sym, SYMNAME_ALLOC (name, symname_alloced)); |
46bf5051 | 1539 | SYMBOL_TYPE (sym) = objfile_type (objfile)->nodebug_text_symbol; |
c906108c SS |
1540 | |
1541 | SYMBOL_CLASS (sym) = LOC_BLOCK; | |
1542 | SYMBOL_DUP (sym, sym2); | |
1543 | ||
1544 | if (cs->c_sclass == C_EXT) | |
1545 | add_symbol_to_list (sym2, &global_symbols); | |
1546 | else if (cs->c_sclass == C_HIDEXT || cs->c_sclass == C_STAT) | |
1547 | add_symbol_to_list (sym2, &file_symbols); | |
1548 | } | |
1549 | else | |
1550 | { | |
581e13c1 | 1551 | /* In case we can't figure out the type, provide default. */ |
46bf5051 | 1552 | SYMBOL_TYPE (sym) = objfile_type (objfile)->nodebug_data_symbol; |
c906108c SS |
1553 | |
1554 | switch (cs->c_sclass) | |
1555 | { | |
1556 | #if 0 | |
c5aa993b JM |
1557 | /* The values of functions and global symbols are now resolved |
1558 | via the global_sym_chain in stabsread.c. */ | |
c906108c SS |
1559 | case C_FUN: |
1560 | if (fcn_cs_saved.c_sclass == C_EXT) | |
1561 | add_stab_to_list (name, &global_stabs); | |
1562 | else | |
1563 | add_stab_to_list (name, &file_stabs); | |
1564 | break; | |
1565 | ||
1566 | case C_GSYM: | |
1567 | add_stab_to_list (name, &global_stabs); | |
1568 | break; | |
1569 | #endif | |
1570 | ||
1571 | case C_BCOMM: | |
1572 | common_block_start (cs->c_name, objfile); | |
1573 | break; | |
1574 | ||
1575 | case C_ECOMM: | |
1576 | common_block_end (objfile); | |
1577 | break; | |
1578 | ||
1579 | default: | |
e2e0b3e5 | 1580 | complaint (&symfile_complaints, _("Unexpected storage class: %d"), |
23136709 | 1581 | cs->c_sclass); |
c906108c SS |
1582 | /* FALLTHROUGH */ |
1583 | ||
1584 | case C_DECL: | |
1585 | case C_PSYM: | |
1586 | case C_RPSYM: | |
1587 | case C_ECOML: | |
1588 | case C_LSYM: | |
1589 | case C_RSYM: | |
1590 | case C_GSYM: | |
1591 | ||
1592 | { | |
1593 | sym = define_symbol (cs->c_value + off, cs->c_name, 0, 0, objfile); | |
1594 | if (sym != NULL) | |
1595 | { | |
1596 | SYMBOL_SECTION (sym) = sec; | |
1597 | } | |
1598 | return sym; | |
1599 | } | |
1600 | ||
1601 | case C_STSYM: | |
1602 | ||
1603 | /* For xlc (not GCC), the 'V' symbol descriptor is used for | |
1604 | all statics and we need to distinguish file-scope versus | |
1605 | function-scope using within_function. We do this by | |
1606 | changing the string we pass to define_symbol to use 'S' | |
1607 | where we need to, which is not necessarily super-clean, | |
1608 | but seems workable enough. */ | |
1609 | ||
9b13a2db PM |
1610 | if (*name == ':') |
1611 | return NULL; | |
1612 | ||
ed4b0e6a | 1613 | pp = strchr (name, ':'); |
9b13a2db | 1614 | if (pp == NULL) |
c906108c SS |
1615 | return NULL; |
1616 | ||
1617 | ++pp; | |
1618 | if (*pp == 'V' && !within_function) | |
1619 | *pp = 'S'; | |
1620 | sym = define_symbol ((cs->c_value | |
1621 | + ANOFFSET (objfile->section_offsets, | |
1622 | static_block_section)), | |
1623 | cs->c_name, 0, 0, objfile); | |
1624 | if (sym != NULL) | |
1625 | { | |
7a78ae4e | 1626 | SYMBOL_VALUE_ADDRESS (sym) += static_block_base; |
c906108c SS |
1627 | SYMBOL_SECTION (sym) = static_block_section; |
1628 | } | |
1629 | return sym; | |
1630 | ||
1631 | } | |
1632 | } | |
1633 | return sym2; | |
1634 | } | |
1635 | ||
1636 | /* Extract the file name from the aux entry of a C_FILE symbol. | |
1637 | Result is in static storage and is only good for temporary use. */ | |
1638 | ||
1639 | static char * | |
fba45db2 | 1640 | coff_getfilename (union internal_auxent *aux_entry, struct objfile *objfile) |
c906108c SS |
1641 | { |
1642 | static char buffer[BUFSIZ]; | |
1643 | ||
1644 | if (aux_entry->x_file.x_n.x_zeroes == 0) | |
3e43a32a MS |
1645 | strcpy (buffer, ((struct coff_symfile_info *) |
1646 | objfile->deprecated_sym_private)->strtbl | |
c906108c SS |
1647 | + aux_entry->x_file.x_n.x_offset); |
1648 | else | |
1649 | { | |
1650 | strncpy (buffer, aux_entry->x_file.x_fname, FILNMLEN); | |
1651 | buffer[FILNMLEN] = '\0'; | |
1652 | } | |
1653 | return (buffer); | |
1654 | } | |
1655 | ||
1656 | /* Set *SYMBOL to symbol number symno in symtbl. */ | |
1657 | static void | |
fba45db2 | 1658 | read_symbol (struct internal_syment *symbol, int symno) |
c906108c | 1659 | { |
3e43a32a MS |
1660 | int nsyms |
1661 | = ((struct coff_symfile_info *) | |
1662 | this_symtab_psymtab->objfile->deprecated_sym_private)->symtbl_num_syms; | |
1663 | char *stbl = ((struct coff_symfile_info *) | |
1664 | this_symtab_psymtab->objfile->deprecated_sym_private)->symtbl; | |
a109c7c1 | 1665 | |
c906108c SS |
1666 | if (symno < 0 || symno >= nsyms) |
1667 | { | |
e2e0b3e5 | 1668 | complaint (&symfile_complaints, _("Invalid symbol offset")); |
c906108c SS |
1669 | symbol->n_value = 0; |
1670 | symbol->n_scnum = -1; | |
1671 | return; | |
1672 | } | |
1673 | bfd_coff_swap_sym_in (this_symtab_psymtab->objfile->obfd, | |
c5aa993b | 1674 | stbl + (symno * local_symesz), |
c906108c SS |
1675 | symbol); |
1676 | } | |
c5aa993b | 1677 | |
c906108c SS |
1678 | /* Get value corresponding to symbol number symno in symtbl. */ |
1679 | ||
470d5666 | 1680 | static CORE_ADDR |
fba45db2 | 1681 | read_symbol_nvalue (int symno) |
c906108c SS |
1682 | { |
1683 | struct internal_syment symbol[1]; | |
1684 | ||
1685 | read_symbol (symbol, symno); | |
c5aa993b | 1686 | return symbol->n_value; |
c906108c SS |
1687 | } |
1688 | ||
1689 | ||
1690 | /* Find the address of the function corresponding to symno, where | |
1691 | symno is the symbol pointed to by the linetable. */ | |
1692 | ||
1693 | static int | |
fba45db2 | 1694 | read_symbol_lineno (int symno) |
c906108c | 1695 | { |
7a78ae4e | 1696 | struct objfile *objfile = this_symtab_psymtab->objfile; |
7af35dad | 1697 | int xcoff64 = bfd_xcoff_is_xcoff64 (objfile->obfd); |
7a78ae4e ND |
1698 | |
1699 | struct coff_symfile_info *info = | |
0a6ddd08 | 1700 | (struct coff_symfile_info *)objfile->deprecated_sym_private; |
7a78ae4e ND |
1701 | int nsyms = info->symtbl_num_syms; |
1702 | char *stbl = info->symtbl; | |
1703 | char *strtbl = info->strtbl; | |
1704 | ||
c906108c SS |
1705 | struct internal_syment symbol[1]; |
1706 | union internal_auxent main_aux[1]; | |
1707 | ||
1708 | if (symno < 0) | |
1709 | { | |
23136709 | 1710 | bf_notfound_complaint (); |
c906108c SS |
1711 | return 0; |
1712 | } | |
1713 | ||
1714 | /* Note that just searching for a short distance (e.g. 50 symbols) | |
1715 | is not enough, at least in the following case. | |
1716 | ||
1717 | .extern foo | |
1718 | [many .stabx entries] | |
1719 | [a few functions, referring to foo] | |
1720 | .globl foo | |
1721 | .bf | |
1722 | ||
1723 | What happens here is that the assembler moves the .stabx entries | |
1724 | to right before the ".bf" for foo, but the symbol for "foo" is before | |
1725 | all the stabx entries. See PR gdb/2222. */ | |
1726 | ||
1727 | /* Maintaining a table of .bf entries might be preferable to this search. | |
1728 | If I understand things correctly it would need to be done only for | |
1729 | the duration of a single psymtab to symtab conversion. */ | |
1730 | while (symno < nsyms) | |
1731 | { | |
1732 | bfd_coff_swap_sym_in (symfile_bfd, | |
1733 | stbl + (symno * local_symesz), symbol); | |
7a78ae4e ND |
1734 | if (symbol->n_sclass == C_FCN) |
1735 | { | |
1736 | char *name = xcoff64 ? strtbl + symbol->n_offset : symbol->n_name; | |
a109c7c1 | 1737 | |
7ecb6532 | 1738 | if (strcmp (name, ".bf") == 0) |
7a78ae4e ND |
1739 | goto gotit; |
1740 | } | |
c906108c SS |
1741 | symno += symbol->n_numaux + 1; |
1742 | } | |
1743 | ||
23136709 | 1744 | bf_notfound_complaint (); |
c906108c SS |
1745 | return 0; |
1746 | ||
1747 | gotit: | |
581e13c1 | 1748 | /* Take aux entry and return its lineno. */ |
c906108c | 1749 | symno++; |
7a78ae4e | 1750 | bfd_coff_swap_aux_in (objfile->obfd, stbl + symno * local_symesz, |
c906108c SS |
1751 | symbol->n_type, symbol->n_sclass, |
1752 | 0, symbol->n_numaux, main_aux); | |
1753 | ||
1754 | return main_aux->x_sym.x_misc.x_lnsz.x_lnno; | |
1755 | } | |
1756 | ||
581e13c1 | 1757 | /* Support for line number handling. */ |
c906108c SS |
1758 | |
1759 | /* This function is called for every section; it finds the outer limits | |
1760 | * of the line table (minimum and maximum file offset) so that the | |
1761 | * mainline code can read the whole thing for efficiency. | |
1762 | */ | |
1763 | static void | |
7be0c536 | 1764 | find_linenos (struct bfd *abfd, struct bfd_section *asect, void *vpinfo) |
c906108c SS |
1765 | { |
1766 | struct coff_symfile_info *info; | |
1767 | int size, count; | |
1768 | file_ptr offset, maxoff; | |
1769 | ||
1770 | count = asect->lineno_count; | |
1771 | ||
7ecb6532 | 1772 | if (strcmp (asect->name, ".text") != 0 || count == 0) |
c906108c SS |
1773 | return; |
1774 | ||
1775 | size = count * coff_data (abfd)->local_linesz; | |
c5aa993b | 1776 | info = (struct coff_symfile_info *) vpinfo; |
c906108c SS |
1777 | offset = asect->line_filepos; |
1778 | maxoff = offset + size; | |
1779 | ||
1780 | if (offset < info->min_lineno_offset || info->min_lineno_offset == 0) | |
1781 | info->min_lineno_offset = offset; | |
1782 | ||
1783 | if (maxoff > info->max_lineno_offset) | |
1784 | info->max_lineno_offset = maxoff; | |
1785 | } | |
1786 | \f | |
a14ed312 | 1787 | static void xcoff_psymtab_to_symtab_1 (struct partial_symtab *); |
c906108c SS |
1788 | |
1789 | static void | |
fba45db2 | 1790 | xcoff_psymtab_to_symtab_1 (struct partial_symtab *pst) |
c906108c SS |
1791 | { |
1792 | struct cleanup *old_chain; | |
1793 | int i; | |
c5aa993b | 1794 | |
c906108c SS |
1795 | if (!pst) |
1796 | return; | |
1797 | ||
1798 | if (pst->readin) | |
1799 | { | |
1800 | fprintf_unfiltered | |
1801 | (gdb_stderr, "Psymtab for %s already read in. Shouldn't happen.\n", | |
1802 | pst->filename); | |
1803 | return; | |
1804 | } | |
1805 | ||
581e13c1 | 1806 | /* Read in all partial symtabs on which this one is dependent. */ |
c906108c SS |
1807 | for (i = 0; i < pst->number_of_dependencies; i++) |
1808 | if (!pst->dependencies[i]->readin) | |
1809 | { | |
1810 | /* Inform about additional files that need to be read in. */ | |
1811 | if (info_verbose) | |
1812 | { | |
1813 | fputs_filtered (" ", gdb_stdout); | |
1814 | wrap_here (""); | |
1815 | fputs_filtered ("and ", gdb_stdout); | |
1816 | wrap_here (""); | |
1817 | printf_filtered ("%s...", pst->dependencies[i]->filename); | |
c5aa993b | 1818 | wrap_here (""); /* Flush output */ |
c906108c SS |
1819 | gdb_flush (gdb_stdout); |
1820 | } | |
1821 | xcoff_psymtab_to_symtab_1 (pst->dependencies[i]); | |
1822 | } | |
1823 | ||
c5aa993b | 1824 | if (((struct symloc *) pst->read_symtab_private)->numsyms != 0) |
c906108c SS |
1825 | { |
1826 | /* Init stuff necessary for reading in symbols. */ | |
1827 | stabsread_init (); | |
1828 | buildsym_init (); | |
a0b3c4fd | 1829 | old_chain = make_cleanup (really_free_pendings, 0); |
c906108c SS |
1830 | |
1831 | read_xcoff_symtab (pst); | |
c906108c SS |
1832 | |
1833 | do_cleanups (old_chain); | |
1834 | } | |
1835 | ||
1836 | pst->readin = 1; | |
1837 | } | |
1838 | ||
a14ed312 | 1839 | static void xcoff_psymtab_to_symtab (struct partial_symtab *); |
c906108c SS |
1840 | |
1841 | /* Read in all of the symbols for a given psymtab for real. | |
1842 | Be verbose about it if the user wants that. */ | |
1843 | ||
1844 | static void | |
fba45db2 | 1845 | xcoff_psymtab_to_symtab (struct partial_symtab *pst) |
c906108c SS |
1846 | { |
1847 | bfd *sym_bfd; | |
1848 | ||
1849 | if (!pst) | |
1850 | return; | |
1851 | ||
1852 | if (pst->readin) | |
1853 | { | |
1854 | fprintf_unfiltered | |
1855 | (gdb_stderr, "Psymtab for %s already read in. Shouldn't happen.\n", | |
1856 | pst->filename); | |
1857 | return; | |
1858 | } | |
1859 | ||
c5aa993b | 1860 | if (((struct symloc *) pst->read_symtab_private)->numsyms != 0 |
c906108c SS |
1861 | || pst->number_of_dependencies) |
1862 | { | |
1863 | /* Print the message now, before reading the string table, | |
c5aa993b | 1864 | to avoid disconcerting pauses. */ |
c906108c SS |
1865 | if (info_verbose) |
1866 | { | |
1867 | printf_filtered ("Reading in symbols for %s...", pst->filename); | |
1868 | gdb_flush (gdb_stdout); | |
1869 | } | |
1870 | ||
1871 | sym_bfd = pst->objfile->obfd; | |
1872 | ||
1873 | next_symbol_text_func = xcoff_next_symbol_text; | |
1874 | ||
1875 | xcoff_psymtab_to_symtab_1 (pst); | |
1876 | ||
1877 | /* Match with global symbols. This only needs to be done once, | |
1878 | after all of the symtabs and dependencies have been read in. */ | |
1879 | scan_file_globals (pst->objfile); | |
1880 | ||
1881 | /* Finish up the debug error message. */ | |
1882 | if (info_verbose) | |
1883 | printf_filtered ("done.\n"); | |
1884 | } | |
1885 | } | |
1886 | \f | |
1887 | static void | |
fba45db2 | 1888 | xcoff_new_init (struct objfile *objfile) |
c906108c SS |
1889 | { |
1890 | stabsread_new_init (); | |
1891 | buildsym_new_init (); | |
1892 | } | |
1893 | ||
1894 | /* Do initialization in preparation for reading symbols from OBJFILE. | |
c5aa993b | 1895 | |
c906108c SS |
1896 | We will only be called if this is an XCOFF or XCOFF-like file. |
1897 | BFD handles figuring out the format of the file, and code in symfile.c | |
1898 | uses BFD's determination to vector to us. */ | |
1899 | ||
1900 | static void | |
fba45db2 | 1901 | xcoff_symfile_init (struct objfile *objfile) |
c906108c | 1902 | { |
581e13c1 | 1903 | /* Allocate struct to keep track of the symfile. */ |
3e43a32a MS |
1904 | objfile->deprecated_sym_private |
1905 | = xmalloc (sizeof (struct coff_symfile_info)); | |
c906108c SS |
1906 | |
1907 | /* XCOFF objects may be reordered, so set OBJF_REORDERED. If we | |
1908 | find this causes a significant slowdown in gdb then we could | |
1909 | set it in the debug symbol readers only when necessary. */ | |
1910 | objfile->flags |= OBJF_REORDERED; | |
1911 | ||
1912 | init_entry_point_info (objfile); | |
1913 | } | |
1914 | ||
1915 | /* Perform any local cleanups required when we are done with a particular | |
1916 | objfile. I.E, we are in the process of discarding all symbol information | |
1917 | for an objfile, freeing up all memory held for it, and unlinking the | |
581e13c1 | 1918 | objfile struct from the global list of known objfiles. */ |
c906108c SS |
1919 | |
1920 | static void | |
fba45db2 | 1921 | xcoff_symfile_finish (struct objfile *objfile) |
c906108c | 1922 | { |
0a6ddd08 | 1923 | if (objfile->deprecated_sym_private != NULL) |
c906108c | 1924 | { |
0a6ddd08 | 1925 | xfree (objfile->deprecated_sym_private); |
c906108c SS |
1926 | } |
1927 | ||
1928 | /* Start with a fresh include table for the next objfile. */ | |
1929 | if (inclTable) | |
1930 | { | |
b8c9b27d | 1931 | xfree (inclTable); |
c906108c SS |
1932 | inclTable = NULL; |
1933 | } | |
1934 | inclIndx = inclLength = inclDepth = 0; | |
316a8b21 TG |
1935 | |
1936 | dwarf2_free_objfile (objfile); | |
c906108c SS |
1937 | } |
1938 | ||
1939 | ||
1940 | static void | |
fba45db2 | 1941 | init_stringtab (bfd *abfd, file_ptr offset, struct objfile *objfile) |
c906108c SS |
1942 | { |
1943 | long length; | |
1944 | int val; | |
1945 | unsigned char lengthbuf[4]; | |
1946 | char *strtbl; | |
1947 | ||
3e43a32a MS |
1948 | ((struct coff_symfile_info *) objfile->deprecated_sym_private)->strtbl |
1949 | = NULL; | |
c906108c SS |
1950 | |
1951 | if (bfd_seek (abfd, offset, SEEK_SET) < 0) | |
8a3fe4f8 | 1952 | error (_("cannot seek to string table in %s: %s"), |
c906108c SS |
1953 | bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); |
1954 | ||
3a42e9d0 | 1955 | val = bfd_bread ((char *) lengthbuf, sizeof lengthbuf, abfd); |
c906108c SS |
1956 | length = bfd_h_get_32 (abfd, lengthbuf); |
1957 | ||
1958 | /* If no string table is needed, then the file may end immediately | |
1959 | after the symbols. Just return with `strtbl' set to NULL. */ | |
1960 | ||
1961 | if (val != sizeof lengthbuf || length < sizeof lengthbuf) | |
1962 | return; | |
1963 | ||
581e13c1 MS |
1964 | /* Allocate string table from objfile_obstack. We will need this table |
1965 | as long as we have its symbol table around. */ | |
c906108c | 1966 | |
4a146b47 | 1967 | strtbl = (char *) obstack_alloc (&objfile->objfile_obstack, length); |
3e43a32a MS |
1968 | ((struct coff_symfile_info *) objfile->deprecated_sym_private)->strtbl |
1969 | = strtbl; | |
c906108c SS |
1970 | |
1971 | /* Copy length buffer, the first byte is usually zero and is | |
1972 | used for stabs with a name length of zero. */ | |
1973 | memcpy (strtbl, lengthbuf, sizeof lengthbuf); | |
1974 | if (length == sizeof lengthbuf) | |
1975 | return; | |
1976 | ||
3a42e9d0 | 1977 | val = bfd_bread (strtbl + sizeof lengthbuf, length - sizeof lengthbuf, abfd); |
c906108c SS |
1978 | |
1979 | if (val != length - sizeof lengthbuf) | |
8a3fe4f8 | 1980 | error (_("cannot read string table from %s: %s"), |
c906108c SS |
1981 | bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); |
1982 | if (strtbl[length - 1] != '\0') | |
3e43a32a MS |
1983 | error (_("bad symbol file: string table " |
1984 | "does not end with null character")); | |
c906108c SS |
1985 | |
1986 | return; | |
1987 | } | |
1988 | \f | |
1989 | /* If we have not yet seen a function for this psymtab, this is 0. If we | |
1990 | have seen one, it is the offset in the line numbers of the line numbers | |
1991 | for the psymtab. */ | |
1992 | static unsigned int first_fun_line_offset; | |
1993 | ||
1994 | static struct partial_symtab *xcoff_start_psymtab | |
a14ed312 KB |
1995 | (struct objfile *, char *, int, |
1996 | struct partial_symbol **, struct partial_symbol **); | |
c906108c SS |
1997 | |
1998 | /* Allocate and partially fill a partial symtab. It will be | |
1999 | completely filled at the end of the symbol list. | |
2000 | ||
2001 | SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR | |
2002 | is the address relative to which its symbols are (incremental) or 0 | |
581e13c1 | 2003 | (normal). */ |
c906108c SS |
2004 | |
2005 | static struct partial_symtab * | |
fba45db2 KB |
2006 | xcoff_start_psymtab (struct objfile *objfile, char *filename, int first_symnum, |
2007 | struct partial_symbol **global_syms, | |
2008 | struct partial_symbol **static_syms) | |
c906108c SS |
2009 | { |
2010 | struct partial_symtab *result = | |
a109c7c1 MS |
2011 | start_psymtab_common (objfile, objfile->section_offsets, |
2012 | filename, | |
2013 | /* We fill in textlow later. */ | |
2014 | 0, | |
2015 | global_syms, static_syms); | |
c906108c | 2016 | |
e38df1d0 TT |
2017 | result->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
2018 | sizeof (struct symloc)); | |
c5aa993b | 2019 | ((struct symloc *) result->read_symtab_private)->first_symnum = first_symnum; |
c906108c SS |
2020 | result->read_symtab = xcoff_psymtab_to_symtab; |
2021 | ||
581e13c1 | 2022 | /* Deduce the source language from the filename for this psymtab. */ |
c906108c SS |
2023 | psymtab_language = deduce_language_from_filename (filename); |
2024 | ||
2025 | return result; | |
2026 | } | |
2027 | ||
2028 | static struct partial_symtab *xcoff_end_psymtab | |
a14ed312 KB |
2029 | (struct partial_symtab *, char **, int, int, |
2030 | struct partial_symtab **, int, int); | |
c906108c | 2031 | |
581e13c1 | 2032 | /* Close off the current usage of PST. |
c906108c SS |
2033 | Returns PST, or NULL if the partial symtab was empty and thrown away. |
2034 | ||
2035 | CAPPING_SYMBOL_NUMBER is the end of pst (exclusive). | |
2036 | ||
2037 | INCLUDE_LIST, NUM_INCLUDES, DEPENDENCY_LIST, and NUMBER_DEPENDENCIES | |
2038 | are the information for includes and dependencies. */ | |
2039 | ||
2040 | static struct partial_symtab * | |
fba45db2 KB |
2041 | xcoff_end_psymtab (struct partial_symtab *pst, char **include_list, |
2042 | int num_includes, int capping_symbol_number, | |
2043 | struct partial_symtab **dependency_list, | |
2044 | int number_dependencies, int textlow_not_set) | |
c906108c SS |
2045 | { |
2046 | int i; | |
c5aa993b | 2047 | struct objfile *objfile = pst->objfile; |
c906108c SS |
2048 | |
2049 | if (capping_symbol_number != -1) | |
c5aa993b | 2050 | ((struct symloc *) pst->read_symtab_private)->numsyms = |
c906108c | 2051 | capping_symbol_number |
c5aa993b JM |
2052 | - ((struct symloc *) pst->read_symtab_private)->first_symnum; |
2053 | ((struct symloc *) pst->read_symtab_private)->lineno_off = | |
c906108c SS |
2054 | first_fun_line_offset; |
2055 | first_fun_line_offset = 0; | |
3e43a32a MS |
2056 | pst->n_global_syms = objfile->global_psymbols.next |
2057 | - (objfile->global_psymbols.list + pst->globals_offset); | |
2058 | pst->n_static_syms = objfile->static_psymbols.next | |
2059 | - (objfile->static_psymbols.list + pst->statics_offset); | |
c906108c SS |
2060 | |
2061 | pst->number_of_dependencies = number_dependencies; | |
2062 | if (number_dependencies) | |
2063 | { | |
2064 | pst->dependencies = (struct partial_symtab **) | |
8b92e4d5 | 2065 | obstack_alloc (&objfile->objfile_obstack, |
c5aa993b | 2066 | number_dependencies * sizeof (struct partial_symtab *)); |
c906108c | 2067 | memcpy (pst->dependencies, dependency_list, |
c5aa993b | 2068 | number_dependencies * sizeof (struct partial_symtab *)); |
c906108c SS |
2069 | } |
2070 | else | |
2071 | pst->dependencies = 0; | |
2072 | ||
2073 | for (i = 0; i < num_includes; i++) | |
2074 | { | |
2075 | struct partial_symtab *subpst = | |
a109c7c1 | 2076 | allocate_psymtab (include_list[i], objfile); |
c906108c SS |
2077 | |
2078 | subpst->section_offsets = pst->section_offsets; | |
e38df1d0 TT |
2079 | subpst->read_symtab_private = obstack_alloc (&objfile->objfile_obstack, |
2080 | sizeof (struct symloc)); | |
c5aa993b JM |
2081 | ((struct symloc *) subpst->read_symtab_private)->first_symnum = 0; |
2082 | ((struct symloc *) subpst->read_symtab_private)->numsyms = 0; | |
c906108c SS |
2083 | subpst->textlow = 0; |
2084 | subpst->texthigh = 0; | |
2085 | ||
2086 | /* We could save slight bits of space by only making one of these, | |
c5aa993b | 2087 | shared by the entire set of include files. FIXME-someday. */ |
c906108c | 2088 | subpst->dependencies = (struct partial_symtab **) |
8b92e4d5 | 2089 | obstack_alloc (&objfile->objfile_obstack, |
c906108c SS |
2090 | sizeof (struct partial_symtab *)); |
2091 | subpst->dependencies[0] = pst; | |
2092 | subpst->number_of_dependencies = 1; | |
2093 | ||
2094 | subpst->globals_offset = | |
2095 | subpst->n_global_syms = | |
c5aa993b JM |
2096 | subpst->statics_offset = |
2097 | subpst->n_static_syms = 0; | |
c906108c SS |
2098 | |
2099 | subpst->readin = 0; | |
2100 | subpst->symtab = 0; | |
2101 | subpst->read_symtab = pst->read_symtab; | |
2102 | } | |
2103 | ||
2104 | sort_pst_symbols (pst); | |
2105 | ||
c906108c SS |
2106 | if (num_includes == 0 |
2107 | && number_dependencies == 0 | |
2108 | && pst->n_global_syms == 0 | |
2109 | && pst->n_static_syms == 0) | |
2110 | { | |
2111 | /* Throw away this psymtab, it's empty. We can't deallocate it, since | |
c5aa993b | 2112 | it is on the obstack, but we can forget to chain it on the list. */ |
c906108c | 2113 | /* Empty psymtabs happen as a result of header files which don't have |
c5aa993b | 2114 | any symbols in them. There can be a lot of them. */ |
c906108c SS |
2115 | |
2116 | discard_psymtab (pst); | |
2117 | ||
2118 | /* Indicate that psymtab was thrown away. */ | |
c5aa993b | 2119 | pst = (struct partial_symtab *) NULL; |
c906108c SS |
2120 | } |
2121 | return pst; | |
2122 | } | |
2123 | ||
a14ed312 KB |
2124 | static void swap_sym (struct internal_syment *, |
2125 | union internal_auxent *, char **, char **, | |
2126 | unsigned int *, struct objfile *); | |
c906108c SS |
2127 | |
2128 | /* Swap raw symbol at *RAW and put the name in *NAME, the symbol in | |
2129 | *SYMBOL, the first auxent in *AUX. Advance *RAW and *SYMNUMP over | |
2130 | the symbol and its auxents. */ | |
2131 | ||
2132 | static void | |
fba45db2 KB |
2133 | swap_sym (struct internal_syment *symbol, union internal_auxent *aux, |
2134 | char **name, char **raw, unsigned int *symnump, | |
2135 | struct objfile *objfile) | |
c906108c SS |
2136 | { |
2137 | bfd_coff_swap_sym_in (objfile->obfd, *raw, symbol); | |
2138 | if (symbol->n_zeroes) | |
2139 | { | |
2140 | /* If it's exactly E_SYMNMLEN characters long it isn't | |
c5aa993b | 2141 | '\0'-terminated. */ |
c906108c SS |
2142 | if (symbol->n_name[E_SYMNMLEN - 1] != '\0') |
2143 | { | |
2144 | /* FIXME: wastes memory for symbols which we don't end up putting | |
2145 | into the minimal symbols. */ | |
2146 | char *p; | |
a109c7c1 | 2147 | |
8b92e4d5 | 2148 | p = obstack_alloc (&objfile->objfile_obstack, E_SYMNMLEN + 1); |
c906108c SS |
2149 | strncpy (p, symbol->n_name, E_SYMNMLEN); |
2150 | p[E_SYMNMLEN] = '\0'; | |
2151 | *name = p; | |
2152 | } | |
2153 | else | |
2154 | /* Point to the unswapped name as that persists as long as the | |
2155 | objfile does. */ | |
c5aa993b | 2156 | *name = ((struct external_syment *) *raw)->e.e_name; |
c906108c SS |
2157 | } |
2158 | else if (symbol->n_sclass & 0x80) | |
2159 | { | |
3e43a32a MS |
2160 | *name = ((struct coff_symfile_info *) |
2161 | objfile->deprecated_sym_private)->debugsec + symbol->n_offset; | |
c906108c SS |
2162 | } |
2163 | else | |
2164 | { | |
3e43a32a MS |
2165 | *name = ((struct coff_symfile_info *) |
2166 | objfile->deprecated_sym_private)->strtbl + symbol->n_offset; | |
c906108c SS |
2167 | } |
2168 | ++*symnump; | |
2169 | *raw += coff_data (objfile->obfd)->local_symesz; | |
2170 | if (symbol->n_numaux > 0) | |
2171 | { | |
2172 | bfd_coff_swap_aux_in (objfile->obfd, *raw, symbol->n_type, | |
2173 | symbol->n_sclass, 0, symbol->n_numaux, aux); | |
2174 | ||
2175 | *symnump += symbol->n_numaux; | |
2176 | *raw += coff_data (objfile->obfd)->local_symesz * symbol->n_numaux; | |
2177 | } | |
2178 | } | |
2179 | ||
23136709 KB |
2180 | static void |
2181 | function_outside_compilation_unit_complaint (const char *arg1) | |
2182 | { | |
2183 | complaint (&symfile_complaints, | |
3e43a32a MS |
2184 | _("function `%s' appears to be defined " |
2185 | "outside of all compilation units"), | |
23136709 KB |
2186 | arg1); |
2187 | } | |
2188 | ||
c906108c | 2189 | static void |
fba45db2 | 2190 | scan_xcoff_symtab (struct objfile *objfile) |
c906108c | 2191 | { |
40c58d95 | 2192 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
581e13c1 | 2193 | CORE_ADDR toc_offset = 0; /* toc offset value in data section. */ |
c906108c SS |
2194 | char *filestring = NULL; |
2195 | ||
2196 | char *namestring; | |
2197 | int past_first_source_file = 0; | |
2198 | bfd *abfd; | |
2199 | asection *bfd_sect; | |
2200 | unsigned int nsyms; | |
2201 | ||
2202 | /* Current partial symtab */ | |
2203 | struct partial_symtab *pst; | |
2204 | ||
581e13c1 | 2205 | /* List of current psymtab's include files. */ |
c906108c SS |
2206 | char **psymtab_include_list; |
2207 | int includes_allocated; | |
2208 | int includes_used; | |
2209 | ||
581e13c1 | 2210 | /* Index within current psymtab dependency list. */ |
c906108c SS |
2211 | struct partial_symtab **dependency_list; |
2212 | int dependencies_used, dependencies_allocated; | |
2213 | ||
2214 | char *sraw_symbol; | |
2215 | struct internal_syment symbol; | |
96baa820 | 2216 | union internal_auxent main_aux[5]; |
c906108c SS |
2217 | unsigned int ssymnum; |
2218 | ||
581e13c1 | 2219 | char *last_csect_name = NULL; /* Last seen csect's name and value. */ |
c906108c SS |
2220 | CORE_ADDR last_csect_val = 0; |
2221 | int last_csect_sec = 0; | |
581e13c1 | 2222 | int misc_func_recorded = 0; /* true if any misc. function. */ |
c906108c SS |
2223 | int textlow_not_set = 1; |
2224 | ||
2225 | pst = (struct partial_symtab *) 0; | |
2226 | ||
2227 | includes_allocated = 30; | |
2228 | includes_used = 0; | |
2229 | psymtab_include_list = (char **) alloca (includes_allocated * | |
2230 | sizeof (char *)); | |
2231 | ||
2232 | dependencies_allocated = 30; | |
2233 | dependencies_used = 0; | |
2234 | dependency_list = | |
2235 | (struct partial_symtab **) alloca (dependencies_allocated * | |
2236 | sizeof (struct partial_symtab *)); | |
2237 | ||
2238 | last_source_file = NULL; | |
2239 | ||
2240 | abfd = objfile->obfd; | |
13c763f4 | 2241 | next_symbol_text_func = xcoff_next_symbol_text; |
c906108c | 2242 | |
3e43a32a MS |
2243 | sraw_symbol = ((struct coff_symfile_info *) |
2244 | objfile->deprecated_sym_private)->symtbl; | |
2245 | nsyms = ((struct coff_symfile_info *) | |
2246 | objfile->deprecated_sym_private)->symtbl_num_syms; | |
c906108c SS |
2247 | ssymnum = 0; |
2248 | while (ssymnum < nsyms) | |
2249 | { | |
7a78ae4e | 2250 | int sclass; |
c906108c SS |
2251 | |
2252 | QUIT; | |
2253 | ||
7a78ae4e ND |
2254 | bfd_coff_swap_sym_in (abfd, sraw_symbol, &symbol); |
2255 | sclass = symbol.n_sclass; | |
2256 | ||
c906108c SS |
2257 | switch (sclass) |
2258 | { | |
2259 | case C_EXT: | |
2260 | case C_HIDEXT: | |
2261 | { | |
2262 | /* The CSECT auxent--always the last auxent. */ | |
2263 | union internal_auxent csect_aux; | |
2264 | unsigned int symnum_before = ssymnum; | |
2265 | ||
96baa820 | 2266 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
c906108c SS |
2267 | &ssymnum, objfile); |
2268 | if (symbol.n_numaux > 1) | |
2269 | { | |
2270 | bfd_coff_swap_aux_in | |
2271 | (objfile->obfd, | |
c5aa993b | 2272 | sraw_symbol - coff_data (abfd)->local_symesz, |
c906108c SS |
2273 | symbol.n_type, |
2274 | symbol.n_sclass, | |
2275 | symbol.n_numaux - 1, | |
2276 | symbol.n_numaux, | |
2277 | &csect_aux); | |
2278 | } | |
2279 | else | |
96baa820 | 2280 | csect_aux = main_aux[0]; |
c906108c | 2281 | |
977adac5 ND |
2282 | /* If symbol name starts with ".$" or "$", ignore it. */ |
2283 | if (namestring[0] == '$' | |
c906108c SS |
2284 | || (namestring[0] == '.' && namestring[1] == '$')) |
2285 | break; | |
2286 | ||
2287 | switch (csect_aux.x_csect.x_smtyp & 0x7) | |
2288 | { | |
2289 | case XTY_SD: | |
2290 | switch (csect_aux.x_csect.x_smclas) | |
2291 | { | |
2292 | case XMC_PR: | |
2293 | if (last_csect_name) | |
2294 | { | |
2295 | /* If no misc. function recorded in the last | |
581e13c1 | 2296 | seen csect, enter it as a function. This |
c906108c SS |
2297 | will take care of functions like strcmp() |
2298 | compiled by xlc. */ | |
2299 | ||
2300 | if (!misc_func_recorded) | |
2301 | { | |
2302 | RECORD_MINIMAL_SYMBOL | |
2303 | (last_csect_name, last_csect_val, | |
2304 | mst_text, last_csect_sec, | |
2305 | objfile); | |
2306 | } | |
2307 | ||
2308 | if (pst != NULL) | |
2309 | { | |
2310 | /* We have to allocate one psymtab for | |
2311 | each program csect, because their text | |
2312 | sections need not be adjacent. */ | |
2313 | xcoff_end_psymtab | |
2314 | (pst, psymtab_include_list, includes_used, | |
2315 | symnum_before, dependency_list, | |
2316 | dependencies_used, textlow_not_set); | |
2317 | includes_used = 0; | |
2318 | dependencies_used = 0; | |
2319 | /* Give all psymtabs for this source file the same | |
2320 | name. */ | |
2321 | pst = xcoff_start_psymtab | |
d4f3574e | 2322 | (objfile, |
c906108c SS |
2323 | filestring, |
2324 | symnum_before, | |
2325 | objfile->global_psymbols.next, | |
2326 | objfile->static_psymbols.next); | |
2327 | } | |
2328 | } | |
977adac5 ND |
2329 | /* Activate the misc_func_recorded mechanism for |
2330 | compiler- and linker-generated CSECTs like ".strcmp" | |
2331 | and "@FIX1". */ | |
2332 | if (namestring && (namestring[0] == '.' | |
2333 | || namestring[0] == '@')) | |
c906108c SS |
2334 | { |
2335 | last_csect_name = namestring; | |
2336 | last_csect_val = symbol.n_value; | |
2337 | last_csect_sec = | |
2338 | secnum_to_section (symbol.n_scnum, objfile); | |
2339 | } | |
2340 | if (pst != NULL) | |
2341 | { | |
2342 | CORE_ADDR highval = | |
a109c7c1 MS |
2343 | symbol.n_value + csect_aux.x_csect.x_scnlen.l; |
2344 | ||
c906108c SS |
2345 | if (highval > pst->texthigh) |
2346 | pst->texthigh = highval; | |
2347 | if (pst->textlow == 0 || symbol.n_value < pst->textlow) | |
2348 | pst->textlow = symbol.n_value; | |
2349 | } | |
2350 | misc_func_recorded = 0; | |
2351 | break; | |
2352 | ||
2353 | case XMC_RW: | |
6904b546 | 2354 | case XMC_TD: |
c906108c SS |
2355 | /* Data variables are recorded in the minimal symbol |
2356 | table, except for section symbols. */ | |
2357 | if (*namestring != '.') | |
2358 | prim_record_minimal_symbol_and_info | |
2359 | (namestring, symbol.n_value, | |
2360 | sclass == C_HIDEXT ? mst_file_data : mst_data, | |
b887350f | 2361 | secnum_to_section (symbol.n_scnum, objfile), |
c906108c SS |
2362 | NULL, objfile); |
2363 | break; | |
2364 | ||
2365 | case XMC_TC0: | |
2366 | if (toc_offset) | |
8a3fe4f8 | 2367 | warning (_("More than one XMC_TC0 symbol found.")); |
c906108c SS |
2368 | toc_offset = symbol.n_value; |
2369 | ||
3e43a32a MS |
2370 | /* Make TOC offset relative to start address of |
2371 | section. */ | |
c906108c SS |
2372 | bfd_sect = secnum_to_bfd_section (symbol.n_scnum, objfile); |
2373 | if (bfd_sect) | |
2374 | toc_offset -= bfd_section_vma (objfile->obfd, bfd_sect); | |
2375 | break; | |
2376 | ||
2377 | case XMC_TC: | |
2378 | /* These symbols tell us where the TOC entry for a | |
2379 | variable is, not the variable itself. */ | |
2380 | break; | |
2381 | ||
2382 | default: | |
2383 | break; | |
2384 | } | |
2385 | break; | |
2386 | ||
2387 | case XTY_LD: | |
2388 | switch (csect_aux.x_csect.x_smclas) | |
2389 | { | |
2390 | case XMC_PR: | |
2391 | /* A function entry point. */ | |
2392 | ||
2393 | if (first_fun_line_offset == 0 && symbol.n_numaux > 1) | |
2394 | first_fun_line_offset = | |
96baa820 | 2395 | main_aux[0].x_sym.x_fcnary.x_fcn.x_lnnoptr; |
c906108c SS |
2396 | RECORD_MINIMAL_SYMBOL |
2397 | (namestring, symbol.n_value, | |
2398 | sclass == C_HIDEXT ? mst_file_text : mst_text, | |
2399 | secnum_to_section (symbol.n_scnum, objfile), | |
2400 | objfile); | |
2401 | break; | |
2402 | ||
2403 | case XMC_GL: | |
2404 | /* shared library function trampoline code entry | |
581e13c1 | 2405 | point. */ |
c906108c SS |
2406 | |
2407 | /* record trampoline code entries as | |
2408 | mst_solib_trampoline symbol. When we lookup mst | |
2409 | symbols, we will choose mst_text over | |
581e13c1 | 2410 | mst_solib_trampoline. */ |
c906108c SS |
2411 | RECORD_MINIMAL_SYMBOL |
2412 | (namestring, symbol.n_value, | |
2413 | mst_solib_trampoline, | |
2414 | secnum_to_section (symbol.n_scnum, objfile), | |
2415 | objfile); | |
2416 | break; | |
2417 | ||
2418 | case XMC_DS: | |
2419 | /* The symbols often have the same names as | |
2420 | debug symbols for functions, and confuse | |
2421 | lookup_symbol. */ | |
2422 | break; | |
2423 | ||
2424 | default: | |
2425 | ||
2426 | /* xlc puts each variable in a separate csect, | |
2427 | so we get an XTY_SD for each variable. But | |
2428 | gcc puts several variables in a csect, so | |
2429 | that each variable only gets an XTY_LD. We | |
2430 | still need to record them. This will | |
2431 | typically be XMC_RW; I suspect XMC_RO and | |
2432 | XMC_BS might be possible too. */ | |
2433 | if (*namestring != '.') | |
2434 | prim_record_minimal_symbol_and_info | |
2435 | (namestring, symbol.n_value, | |
2436 | sclass == C_HIDEXT ? mst_file_data : mst_data, | |
b887350f | 2437 | secnum_to_section (symbol.n_scnum, objfile), |
c906108c SS |
2438 | NULL, objfile); |
2439 | break; | |
2440 | } | |
2441 | break; | |
2442 | ||
2443 | case XTY_CM: | |
2444 | switch (csect_aux.x_csect.x_smclas) | |
2445 | { | |
2446 | case XMC_RW: | |
2447 | case XMC_BS: | |
2448 | /* Common variables are recorded in the minimal symbol | |
2449 | table, except for section symbols. */ | |
2450 | if (*namestring != '.') | |
2451 | prim_record_minimal_symbol_and_info | |
2452 | (namestring, symbol.n_value, | |
2453 | sclass == C_HIDEXT ? mst_file_bss : mst_bss, | |
b887350f | 2454 | secnum_to_section (symbol.n_scnum, objfile), |
c906108c SS |
2455 | NULL, objfile); |
2456 | break; | |
2457 | } | |
2458 | break; | |
2459 | ||
2460 | default: | |
2461 | break; | |
2462 | } | |
2463 | } | |
2464 | break; | |
2465 | case C_FILE: | |
2466 | { | |
2467 | unsigned int symnum_before; | |
2468 | ||
2469 | symnum_before = ssymnum; | |
96baa820 | 2470 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
c906108c SS |
2471 | &ssymnum, objfile); |
2472 | ||
2473 | /* See if the last csect needs to be recorded. */ | |
2474 | ||
2475 | if (last_csect_name && !misc_func_recorded) | |
2476 | { | |
c906108c SS |
2477 | /* If no misc. function recorded in the last seen csect, enter |
2478 | it as a function. This will take care of functions like | |
2479 | strcmp() compiled by xlc. */ | |
2480 | ||
2481 | RECORD_MINIMAL_SYMBOL | |
2482 | (last_csect_name, last_csect_val, | |
2483 | mst_text, last_csect_sec, objfile); | |
2484 | } | |
2485 | ||
2486 | if (pst) | |
2487 | { | |
2488 | xcoff_end_psymtab (pst, psymtab_include_list, includes_used, | |
2489 | symnum_before, dependency_list, | |
2490 | dependencies_used, textlow_not_set); | |
2491 | includes_used = 0; | |
2492 | dependencies_used = 0; | |
2493 | } | |
2494 | first_fun_line_offset = 0; | |
2495 | ||
2496 | /* XCOFF, according to the AIX 3.2 documentation, puts the | |
2497 | filename in cs->c_name. But xlc 1.3.0.2 has decided to | |
2498 | do things the standard COFF way and put it in the auxent. | |
2499 | We use the auxent if the symbol is ".file" and an auxent | |
2500 | exists, otherwise use the symbol itself. */ | |
2501 | if (!strcmp (namestring, ".file") && symbol.n_numaux > 0) | |
2502 | { | |
96baa820 | 2503 | filestring = coff_getfilename (&main_aux[0], objfile); |
c906108c SS |
2504 | } |
2505 | else | |
2506 | filestring = namestring; | |
2507 | ||
d4f3574e | 2508 | pst = xcoff_start_psymtab (objfile, |
c906108c SS |
2509 | filestring, |
2510 | symnum_before, | |
2511 | objfile->global_psymbols.next, | |
2512 | objfile->static_psymbols.next); | |
2513 | last_csect_name = NULL; | |
2514 | } | |
2515 | break; | |
2516 | ||
2517 | default: | |
2518 | { | |
23136709 | 2519 | complaint (&symfile_complaints, |
3e43a32a MS |
2520 | _("Storage class %d not recognized during scan"), |
2521 | sclass); | |
c906108c SS |
2522 | } |
2523 | /* FALLTHROUGH */ | |
2524 | ||
2525 | /* C_FCN is .bf and .ef symbols. I think it is sufficient | |
2526 | to handle only the C_FUN and C_EXT. */ | |
2527 | case C_FCN: | |
2528 | ||
2529 | case C_BSTAT: | |
2530 | case C_ESTAT: | |
2531 | case C_ARG: | |
2532 | case C_REGPARM: | |
2533 | case C_REG: | |
2534 | case C_TPDEF: | |
2535 | case C_STRTAG: | |
2536 | case C_UNTAG: | |
2537 | case C_ENTAG: | |
2538 | case C_LABEL: | |
2539 | case C_NULL: | |
2540 | ||
2541 | /* C_EINCL means we are switching back to the main file. But there | |
2542 | is no reason to care; the only thing we want to know about | |
2543 | includes is the names of all the included (.h) files. */ | |
2544 | case C_EINCL: | |
2545 | ||
2546 | case C_BLOCK: | |
2547 | ||
2548 | /* I don't think C_STAT is used in xcoff; C_HIDEXT appears to be | |
2549 | used instead. */ | |
2550 | case C_STAT: | |
2551 | ||
2552 | /* I don't think the name of the common block (as opposed to the | |
2553 | variables within it) is something which is user visible | |
2554 | currently. */ | |
2555 | case C_BCOMM: | |
2556 | case C_ECOMM: | |
2557 | ||
2558 | case C_PSYM: | |
2559 | case C_RPSYM: | |
2560 | ||
2561 | /* I think we can ignore C_LSYM; types on xcoff seem to use C_DECL | |
2562 | so C_LSYM would appear to be only for locals. */ | |
2563 | case C_LSYM: | |
2564 | ||
2565 | case C_AUTO: | |
2566 | case C_RSYM: | |
2567 | { | |
2568 | /* We probably could save a few instructions by assuming that | |
2569 | C_LSYM, C_PSYM, etc., never have auxents. */ | |
7a78ae4e | 2570 | int naux1 = symbol.n_numaux + 1; |
a109c7c1 | 2571 | |
c906108c | 2572 | ssymnum += naux1; |
7a78ae4e | 2573 | sraw_symbol += bfd_coff_symesz (abfd) * naux1; |
c906108c SS |
2574 | } |
2575 | break; | |
2576 | ||
2577 | case C_BINCL: | |
d5d0a62f | 2578 | { |
581e13c1 | 2579 | /* Mark down an include file in the current psymtab. */ |
d5d0a62f | 2580 | enum language tmp_language; |
a109c7c1 | 2581 | |
d5d0a62f EZ |
2582 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
2583 | &ssymnum, objfile); | |
2584 | ||
2585 | tmp_language = deduce_language_from_filename (namestring); | |
2586 | ||
2587 | /* Only change the psymtab's language if we've learned | |
2588 | something useful (eg. tmp_language is not language_unknown). | |
2589 | In addition, to match what start_subfile does, never change | |
2590 | from C++ to C. */ | |
2591 | if (tmp_language != language_unknown | |
2592 | && (tmp_language != language_c | |
2593 | || psymtab_language != language_cplus)) | |
2594 | psymtab_language = tmp_language; | |
2595 | ||
2596 | /* In C++, one may expect the same filename to come round many | |
2597 | times, when code is coming alternately from the main file | |
581e13c1 | 2598 | and from inline functions in other files. So I check to see |
d5d0a62f EZ |
2599 | if this is a file we've seen before -- either the main |
2600 | source file, or a previously included file. | |
2601 | ||
2602 | This seems to be a lot of time to be spending on N_SOL, but | |
2603 | things like "break c-exp.y:435" need to work (I | |
2604 | suppose the psymtab_include_list could be hashed or put | |
2605 | in a binary tree, if profiling shows this is a major hog). */ | |
7ecb6532 | 2606 | if (pst && strcmp (namestring, pst->filename) == 0) |
d5d0a62f | 2607 | continue; |
a109c7c1 | 2608 | |
d5d0a62f | 2609 | { |
aa1ee363 | 2610 | int i; |
a109c7c1 | 2611 | |
d5d0a62f | 2612 | for (i = 0; i < includes_used; i++) |
7ecb6532 | 2613 | if (strcmp (namestring, psymtab_include_list[i]) == 0) |
d5d0a62f EZ |
2614 | { |
2615 | i = -1; | |
2616 | break; | |
2617 | } | |
2618 | if (i == -1) | |
2619 | continue; | |
2620 | } | |
2621 | psymtab_include_list[includes_used++] = namestring; | |
2622 | if (includes_used >= includes_allocated) | |
2623 | { | |
2624 | char **orig = psymtab_include_list; | |
c906108c | 2625 | |
d5d0a62f EZ |
2626 | psymtab_include_list = (char **) |
2627 | alloca ((includes_allocated *= 2) * | |
2628 | sizeof (char *)); | |
4efb68b1 | 2629 | memcpy (psymtab_include_list, orig, |
d5d0a62f EZ |
2630 | includes_used * sizeof (char *)); |
2631 | } | |
2632 | continue; | |
2633 | } | |
c906108c SS |
2634 | case C_FUN: |
2635 | /* The value of the C_FUN is not the address of the function (it | |
2636 | appears to be the address before linking), but as long as it | |
2637 | is smaller than the actual address, then find_pc_partial_function | |
2638 | will use the minimal symbols instead. I hope. */ | |
2639 | ||
2640 | case C_GSYM: | |
2641 | case C_ECOML: | |
2642 | case C_DECL: | |
2643 | case C_STSYM: | |
d5d0a62f | 2644 | { |
d5d0a62f | 2645 | char *p; |
a109c7c1 | 2646 | |
d5d0a62f EZ |
2647 | swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol, |
2648 | &ssymnum, objfile); | |
2649 | ||
ed4b0e6a | 2650 | p = strchr (namestring, ':'); |
d5d0a62f EZ |
2651 | if (!p) |
2652 | continue; /* Not a debugging symbol. */ | |
2653 | ||
2654 | /* Main processing section for debugging symbols which | |
2655 | the initial read through the symbol tables needs to worry | |
2656 | about. If we reach this point, the symbol which we are | |
2657 | considering is definitely one we are interested in. | |
2658 | p must also contain the (valid) index into the namestring | |
2659 | which indicates the debugging type symbol. */ | |
2660 | ||
2661 | switch (p[1]) | |
2662 | { | |
2663 | case 'S': | |
3e43a32a MS |
2664 | symbol.n_value += ANOFFSET (objfile->section_offsets, |
2665 | SECT_OFF_DATA (objfile)); | |
149ad273 | 2666 | |
5e2b427d | 2667 | if (gdbarch_static_transform_name_p (gdbarch)) |
149ad273 | 2668 | namestring = gdbarch_static_transform_name |
5e2b427d | 2669 | (gdbarch, namestring); |
149ad273 | 2670 | |
04a679b8 | 2671 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2672 | VAR_DOMAIN, LOC_STATIC, |
d5d0a62f EZ |
2673 | &objfile->static_psymbols, |
2674 | 0, symbol.n_value, | |
2675 | psymtab_language, objfile); | |
2676 | continue; | |
2677 | ||
2678 | case 'G': | |
3e43a32a MS |
2679 | symbol.n_value += ANOFFSET (objfile->section_offsets, |
2680 | SECT_OFF_DATA (objfile)); | |
d5d0a62f | 2681 | /* The addresses in these entries are reported to be |
581e13c1 | 2682 | wrong. See the code that reads 'G's for symtabs. */ |
04a679b8 | 2683 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2684 | VAR_DOMAIN, LOC_STATIC, |
d5d0a62f EZ |
2685 | &objfile->global_psymbols, |
2686 | 0, symbol.n_value, | |
2687 | psymtab_language, objfile); | |
2688 | continue; | |
2689 | ||
2690 | case 'T': | |
2691 | /* When a 'T' entry is defining an anonymous enum, it | |
2692 | may have a name which is the empty string, or a | |
2693 | single space. Since they're not really defining a | |
2694 | symbol, those shouldn't go in the partial symbol | |
2695 | table. We do pick up the elements of such enums at | |
2696 | 'check_enum:', below. */ | |
2697 | if (p >= namestring + 2 | |
2698 | || (p == namestring + 1 | |
2699 | && namestring[0] != ' ')) | |
2700 | { | |
04a679b8 | 2701 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2702 | STRUCT_DOMAIN, LOC_TYPEDEF, |
d5d0a62f EZ |
2703 | &objfile->static_psymbols, |
2704 | symbol.n_value, 0, | |
2705 | psymtab_language, objfile); | |
2706 | if (p[2] == 't') | |
2707 | { | |
2708 | /* Also a typedef with the same name. */ | |
04a679b8 | 2709 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2710 | VAR_DOMAIN, LOC_TYPEDEF, |
d5d0a62f EZ |
2711 | &objfile->static_psymbols, |
2712 | symbol.n_value, 0, | |
2713 | psymtab_language, objfile); | |
2714 | p += 1; | |
2715 | } | |
d5d0a62f EZ |
2716 | } |
2717 | goto check_enum; | |
2718 | ||
2719 | case 't': | |
581e13c1 | 2720 | if (p != namestring) /* a name is there, not just :T... */ |
d5d0a62f | 2721 | { |
04a679b8 | 2722 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2723 | VAR_DOMAIN, LOC_TYPEDEF, |
d5d0a62f EZ |
2724 | &objfile->static_psymbols, |
2725 | symbol.n_value, 0, | |
2726 | psymtab_language, objfile); | |
2727 | } | |
2728 | check_enum: | |
2729 | /* If this is an enumerated type, we need to | |
2730 | add all the enum constants to the partial symbol | |
2731 | table. This does not cover enums without names, e.g. | |
2732 | "enum {a, b} c;" in C, but fortunately those are | |
2733 | rare. There is no way for GDB to find those from the | |
2734 | enum type without spending too much time on it. Thus | |
2735 | to solve this problem, the compiler needs to put out the | |
2736 | enum in a nameless type. GCC2 does this. */ | |
2737 | ||
2738 | /* We are looking for something of the form | |
2739 | <name> ":" ("t" | "T") [<number> "="] "e" | |
2740 | {<constant> ":" <value> ","} ";". */ | |
2741 | ||
2742 | /* Skip over the colon and the 't' or 'T'. */ | |
2743 | p += 2; | |
2744 | /* This type may be given a number. Also, numbers can come | |
2745 | in pairs like (0,26). Skip over it. */ | |
2746 | while ((*p >= '0' && *p <= '9') | |
2747 | || *p == '(' || *p == ',' || *p == ')' | |
2748 | || *p == '=') | |
2749 | p++; | |
2750 | ||
2751 | if (*p++ == 'e') | |
2752 | { | |
3e43a32a MS |
2753 | /* The aix4 compiler emits extra crud before the |
2754 | members. */ | |
d5d0a62f EZ |
2755 | if (*p == '-') |
2756 | { | |
2757 | /* Skip over the type (?). */ | |
2758 | while (*p != ':') | |
2759 | p++; | |
2760 | ||
2761 | /* Skip over the colon. */ | |
2762 | p++; | |
2763 | } | |
2764 | ||
2765 | /* We have found an enumerated type. */ | |
2766 | /* According to comments in read_enum_type | |
2767 | a comma could end it instead of a semicolon. | |
2768 | I don't know where that happens. | |
2769 | Accept either. */ | |
2770 | while (*p && *p != ';' && *p != ',') | |
2771 | { | |
2772 | char *q; | |
2773 | ||
2774 | /* Check for and handle cretinous dbx symbol name | |
2775 | continuation! */ | |
2776 | if (*p == '\\' || (*p == '?' && p[1] == '\0')) | |
2777 | p = next_symbol_text (objfile); | |
2778 | ||
2779 | /* Point to the character after the name | |
2780 | of the enum constant. */ | |
2781 | for (q = p; *q && *q != ':'; q++) | |
2782 | ; | |
2783 | /* Note that the value doesn't matter for | |
2784 | enum constants in psymtabs, just in symtabs. */ | |
04a679b8 | 2785 | add_psymbol_to_list (p, q - p, 1, |
176620f1 | 2786 | VAR_DOMAIN, LOC_CONST, |
d5d0a62f EZ |
2787 | &objfile->static_psymbols, 0, |
2788 | 0, psymtab_language, objfile); | |
2789 | /* Point past the name. */ | |
2790 | p = q; | |
2791 | /* Skip over the value. */ | |
2792 | while (*p && *p != ',') | |
2793 | p++; | |
2794 | /* Advance past the comma. */ | |
2795 | if (*p) | |
2796 | p++; | |
2797 | } | |
2798 | } | |
2799 | continue; | |
2800 | ||
2801 | case 'c': | |
2802 | /* Constant, e.g. from "const" in Pascal. */ | |
04a679b8 | 2803 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2804 | VAR_DOMAIN, LOC_CONST, |
d5d0a62f EZ |
2805 | &objfile->static_psymbols, symbol.n_value, |
2806 | 0, psymtab_language, objfile); | |
2807 | continue; | |
2808 | ||
2809 | case 'f': | |
2810 | if (! pst) | |
2811 | { | |
2812 | int name_len = p - namestring; | |
2813 | char *name = xmalloc (name_len + 1); | |
a109c7c1 | 2814 | |
d5d0a62f EZ |
2815 | memcpy (name, namestring, name_len); |
2816 | name[name_len] = '\0'; | |
23136709 | 2817 | function_outside_compilation_unit_complaint (name); |
d5d0a62f EZ |
2818 | xfree (name); |
2819 | } | |
3e43a32a MS |
2820 | symbol.n_value += ANOFFSET (objfile->section_offsets, |
2821 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 2822 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2823 | VAR_DOMAIN, LOC_BLOCK, |
d5d0a62f EZ |
2824 | &objfile->static_psymbols, |
2825 | 0, symbol.n_value, | |
2826 | psymtab_language, objfile); | |
2827 | continue; | |
2828 | ||
2829 | /* Global functions were ignored here, but now they | |
2830 | are put into the global psymtab like one would expect. | |
2831 | They're also in the minimal symbol table. */ | |
2832 | case 'F': | |
2833 | if (! pst) | |
2834 | { | |
2835 | int name_len = p - namestring; | |
2836 | char *name = xmalloc (name_len + 1); | |
a109c7c1 | 2837 | |
d5d0a62f EZ |
2838 | memcpy (name, namestring, name_len); |
2839 | name[name_len] = '\0'; | |
23136709 | 2840 | function_outside_compilation_unit_complaint (name); |
d5d0a62f EZ |
2841 | xfree (name); |
2842 | } | |
9f1d5432 PH |
2843 | |
2844 | /* We need only the minimal symbols for these | |
581e13c1 | 2845 | loader-generated definitions. Keeping the global |
9f1d5432 | 2846 | symbols leads to "in psymbols but not in symbols" |
581e13c1 | 2847 | errors. */ |
9f1d5432 PH |
2848 | if (strncmp (namestring, "@FIX", 4) == 0) |
2849 | continue; | |
2850 | ||
3e43a32a MS |
2851 | symbol.n_value += ANOFFSET (objfile->section_offsets, |
2852 | SECT_OFF_TEXT (objfile)); | |
04a679b8 | 2853 | add_psymbol_to_list (namestring, p - namestring, 1, |
176620f1 | 2854 | VAR_DOMAIN, LOC_BLOCK, |
d5d0a62f EZ |
2855 | &objfile->global_psymbols, |
2856 | 0, symbol.n_value, | |
2857 | psymtab_language, objfile); | |
2858 | continue; | |
2859 | ||
2860 | /* Two things show up here (hopefully); static symbols of | |
2861 | local scope (static used inside braces) or extensions | |
2862 | of structure symbols. We can ignore both. */ | |
2863 | case 'V': | |
2864 | case '(': | |
2865 | case '0': | |
2866 | case '1': | |
2867 | case '2': | |
2868 | case '3': | |
2869 | case '4': | |
2870 | case '5': | |
2871 | case '6': | |
2872 | case '7': | |
2873 | case '8': | |
2874 | case '9': | |
2875 | case '-': | |
3e43a32a MS |
2876 | case '#': /* For symbol identification (used in |
2877 | live ranges). */ | |
d5d0a62f EZ |
2878 | continue; |
2879 | ||
2880 | case ':': | |
2881 | /* It is a C++ nested symbol. We don't need to record it | |
2882 | (I don't think); if we try to look up foo::bar::baz, | |
2883 | then symbols for the symtab containing foo should get | |
2884 | read in, I think. */ | |
2885 | /* Someone says sun cc puts out symbols like | |
2886 | /foo/baz/maclib::/usr/local/bin/maclib, | |
2887 | which would get here with a symbol type of ':'. */ | |
2888 | continue; | |
2889 | ||
2890 | default: | |
3e43a32a MS |
2891 | /* Unexpected symbol descriptor. The second and |
2892 | subsequent stabs of a continued stab can show up | |
2893 | here. The question is whether they ever can mimic | |
2894 | a normal stab--it would be nice if not, since we | |
2895 | certainly don't want to spend the time searching to | |
2896 | the end of every string looking for a | |
2897 | backslash. */ | |
d5d0a62f | 2898 | |
23136709 | 2899 | complaint (&symfile_complaints, |
e2e0b3e5 | 2900 | _("unknown symbol descriptor `%c'"), p[1]); |
d5d0a62f EZ |
2901 | |
2902 | /* Ignore it; perhaps it is an extension that we don't | |
2903 | know about. */ | |
2904 | continue; | |
2905 | } | |
2906 | } | |
c906108c SS |
2907 | } |
2908 | } | |
2909 | ||
2910 | if (pst) | |
2911 | { | |
2912 | xcoff_end_psymtab (pst, psymtab_include_list, includes_used, | |
2913 | ssymnum, dependency_list, | |
2914 | dependencies_used, textlow_not_set); | |
2915 | } | |
2916 | ||
581e13c1 MS |
2917 | /* Record the toc offset value of this symbol table into objfile |
2918 | structure. If no XMC_TC0 is found, toc_offset should be zero. | |
2919 | Another place to obtain this information would be file auxiliary | |
2920 | header. */ | |
c906108c | 2921 | |
3e43a32a MS |
2922 | ((struct coff_symfile_info *) objfile->deprecated_sym_private)->toc_offset |
2923 | = toc_offset; | |
c906108c SS |
2924 | } |
2925 | ||
2926 | /* Return the toc offset value for a given objfile. */ | |
2927 | ||
2928 | CORE_ADDR | |
63807e1d | 2929 | xcoff_get_toc_offset (struct objfile *objfile) |
c906108c SS |
2930 | { |
2931 | if (objfile) | |
3e43a32a MS |
2932 | return ((struct coff_symfile_info *) |
2933 | objfile->deprecated_sym_private)->toc_offset; | |
c906108c SS |
2934 | return 0; |
2935 | } | |
2936 | ||
2937 | /* Scan and build partial symbols for a symbol file. | |
2938 | We have been initialized by a call to dbx_symfile_init, which | |
2939 | put all the relevant info into a "struct dbx_symfile_info", | |
2940 | hung off the objfile structure. | |
2941 | ||
2942 | SECTION_OFFSETS contains offsets relative to which the symbols in the | |
581e13c1 MS |
2943 | various sections are (depending where the sections were actually |
2944 | loaded). */ | |
c906108c SS |
2945 | |
2946 | static void | |
f4352531 | 2947 | xcoff_initial_scan (struct objfile *objfile, int symfile_flags) |
c906108c SS |
2948 | { |
2949 | bfd *abfd; | |
2950 | int val; | |
2951 | struct cleanup *back_to; | |
c5aa993b JM |
2952 | int num_symbols; /* # of symbols */ |
2953 | file_ptr symtab_offset; /* symbol table and */ | |
2954 | file_ptr stringtab_offset; /* string table file offsets */ | |
c906108c SS |
2955 | struct coff_symfile_info *info; |
2956 | char *name; | |
2957 | unsigned int size; | |
2958 | ||
0a6ddd08 | 2959 | info = (struct coff_symfile_info *) objfile->deprecated_sym_private; |
c906108c SS |
2960 | symfile_bfd = abfd = objfile->obfd; |
2961 | name = objfile->name; | |
2962 | ||
2963 | num_symbols = bfd_get_symcount (abfd); /* # of symbols */ | |
2964 | symtab_offset = obj_sym_filepos (abfd); /* symbol table file offset */ | |
2965 | stringtab_offset = symtab_offset + | |
c5aa993b | 2966 | num_symbols * coff_data (abfd)->local_symesz; |
c906108c SS |
2967 | |
2968 | info->min_lineno_offset = 0; | |
2969 | info->max_lineno_offset = 0; | |
2970 | bfd_map_over_sections (abfd, find_linenos, info); | |
2971 | ||
2972 | if (num_symbols > 0) | |
2973 | { | |
2974 | /* Read the string table. */ | |
2975 | init_stringtab (abfd, stringtab_offset, objfile); | |
2976 | ||
2977 | /* Read the .debug section, if present. */ | |
2978 | { | |
7be0c536 | 2979 | struct bfd_section *secp; |
c906108c SS |
2980 | bfd_size_type length; |
2981 | char *debugsec = NULL; | |
2982 | ||
2983 | secp = bfd_get_section_by_name (abfd, ".debug"); | |
2984 | if (secp) | |
2985 | { | |
2986 | length = bfd_section_size (abfd, secp); | |
2987 | if (length) | |
2988 | { | |
2989 | debugsec = | |
4a146b47 | 2990 | (char *) obstack_alloc (&objfile->objfile_obstack, length); |
c906108c SS |
2991 | |
2992 | if (!bfd_get_section_contents (abfd, secp, debugsec, | |
2993 | (file_ptr) 0, length)) | |
2994 | { | |
8a3fe4f8 | 2995 | error (_("Error reading .debug section of `%s': %s"), |
c906108c SS |
2996 | name, bfd_errmsg (bfd_get_error ())); |
2997 | } | |
2998 | } | |
2999 | } | |
3e43a32a MS |
3000 | ((struct coff_symfile_info *) |
3001 | objfile->deprecated_sym_private)->debugsec | |
3002 | = debugsec; | |
c906108c SS |
3003 | } |
3004 | } | |
3005 | ||
3006 | /* Read the symbols. We keep them in core because we will want to | |
3007 | access them randomly in read_symbol*. */ | |
3008 | val = bfd_seek (abfd, symtab_offset, SEEK_SET); | |
3009 | if (val < 0) | |
8a3fe4f8 | 3010 | error (_("Error reading symbols from %s: %s"), |
c906108c SS |
3011 | name, bfd_errmsg (bfd_get_error ())); |
3012 | size = coff_data (abfd)->local_symesz * num_symbols; | |
0a6ddd08 | 3013 | ((struct coff_symfile_info *) objfile->deprecated_sym_private)->symtbl = |
4a146b47 | 3014 | obstack_alloc (&objfile->objfile_obstack, size); |
3e43a32a MS |
3015 | ((struct coff_symfile_info *) |
3016 | objfile->deprecated_sym_private)->symtbl_num_syms | |
3017 | = num_symbols; | |
c906108c | 3018 | |
3e43a32a MS |
3019 | val = bfd_bread (((struct coff_symfile_info *) |
3020 | objfile->deprecated_sym_private)->symtbl, | |
3a42e9d0 | 3021 | size, abfd); |
c906108c | 3022 | if (val != size) |
e2e0b3e5 | 3023 | perror_with_name (_("reading symbol table")); |
c906108c | 3024 | |
581e13c1 | 3025 | /* If we are reinitializing, or if we have never loaded syms yet, init. */ |
de1d8fb9 | 3026 | if (objfile->global_psymbols.size == 0 && objfile->static_psymbols.size == 0) |
c906108c SS |
3027 | /* I'm not sure how how good num_symbols is; the rule of thumb in |
3028 | init_psymbol_list was developed for a.out. On the one hand, | |
3029 | num_symbols includes auxents. On the other hand, it doesn't | |
3030 | include N_SLINE. */ | |
3031 | init_psymbol_list (objfile, num_symbols); | |
3032 | ||
3033 | free_pending_blocks (); | |
a0b3c4fd | 3034 | back_to = make_cleanup (really_free_pendings, 0); |
c906108c SS |
3035 | |
3036 | init_minimal_symbol_collection (); | |
56e290f4 | 3037 | make_cleanup_discard_minimal_symbols (); |
c906108c SS |
3038 | |
3039 | /* Now that the symbol table data of the executable file are all in core, | |
3040 | process them and define symbols accordingly. */ | |
3041 | ||
d4f3574e | 3042 | scan_xcoff_symtab (objfile); |
c906108c SS |
3043 | |
3044 | /* Install any minimal symbols that have been collected as the current | |
581e13c1 | 3045 | minimal symbols for this objfile. */ |
c906108c SS |
3046 | |
3047 | install_minimal_symbols (objfile); | |
3048 | ||
316a8b21 TG |
3049 | /* DWARF2 sections. */ |
3050 | ||
3051 | if (dwarf2_has_info (objfile, &dwarf2_xcoff_names)) | |
3052 | dwarf2_build_psymtabs (objfile); | |
3053 | ||
3054 | dwarf2_build_frame_info (objfile); | |
3055 | ||
c906108c SS |
3056 | do_cleanups (back_to); |
3057 | } | |
3058 | \f | |
d4f3574e | 3059 | static void |
3e43a32a MS |
3060 | xcoff_symfile_offsets (struct objfile *objfile, |
3061 | struct section_addr_info *addrs) | |
c906108c | 3062 | { |
b8fbeb18 | 3063 | asection *sect = NULL; |
c906108c SS |
3064 | int i; |
3065 | ||
a39a16c4 | 3066 | objfile->num_sections = bfd_count_sections (objfile->obfd); |
d4f3574e | 3067 | objfile->section_offsets = (struct section_offsets *) |
8b92e4d5 | 3068 | obstack_alloc (&objfile->objfile_obstack, |
a39a16c4 | 3069 | SIZEOF_N_SECTION_OFFSETS (objfile->num_sections)); |
c906108c | 3070 | |
581e13c1 | 3071 | /* Initialize the section indexes for future use. */ |
b8fbeb18 EZ |
3072 | sect = bfd_get_section_by_name (objfile->obfd, ".text"); |
3073 | if (sect) | |
3074 | objfile->sect_index_text = sect->index; | |
3075 | ||
3076 | sect = bfd_get_section_by_name (objfile->obfd, ".data"); | |
3077 | if (sect) | |
3078 | objfile->sect_index_data = sect->index; | |
3079 | ||
3080 | sect = bfd_get_section_by_name (objfile->obfd, ".bss"); | |
3081 | if (sect) | |
3082 | objfile->sect_index_bss = sect->index; | |
3083 | ||
3084 | sect = bfd_get_section_by_name (objfile->obfd, ".rodata"); | |
3085 | if (sect) | |
3086 | objfile->sect_index_rodata = sect->index; | |
3087 | ||
c906108c | 3088 | for (i = 0; i < objfile->num_sections; ++i) |
b8fbeb18 EZ |
3089 | { |
3090 | /* syms_from_objfile kindly subtracts from addr the | |
3091 | bfd_section_vma of the .text section. This strikes me as | |
3092 | wrong--whether the offset to be applied to symbol reading is | |
3093 | relative to the start address of the section depends on the | |
3094 | symbol format. In any event, this whole "addr" concept is | |
3095 | pretty broken (it doesn't handle any section but .text | |
3096 | sensibly), so just ignore the addr parameter and use 0. | |
3097 | rs6000-nat.c will set the correct section offsets via | |
3098 | objfile_relocate. */ | |
f0a58b0b | 3099 | (objfile->section_offsets)->offsets[i] = 0; |
b8fbeb18 | 3100 | } |
c906108c SS |
3101 | } |
3102 | ||
3103 | /* Register our ability to parse symbols for xcoff BFD files. */ | |
3104 | ||
00b5771c | 3105 | static const struct sym_fns xcoff_sym_fns = |
c906108c SS |
3106 | { |
3107 | ||
7a78ae4e | 3108 | /* It is possible that coff and xcoff should be merged as |
c906108c SS |
3109 | they do have fundamental similarities (for example, the extra storage |
3110 | classes used for stabs could presumably be recognized in any COFF file). | |
3111 | However, in addition to obvious things like all the csect hair, there are | |
3112 | some subtler differences between xcoffread.c and coffread.c, notably | |
3113 | the fact that coffread.c has no need to read in all the symbols, but | |
3114 | xcoffread.c reads all the symbols and does in fact randomly access them | |
3115 | (in C_BSTAT and line number processing). */ | |
3116 | ||
7a78ae4e | 3117 | bfd_target_xcoff_flavour, |
c906108c | 3118 | |
3e43a32a MS |
3119 | xcoff_new_init, /* init anything gbl to entire symtab */ |
3120 | xcoff_symfile_init, /* read initial info, setup for sym_read() */ | |
3121 | xcoff_initial_scan, /* read a symbol file into symtab */ | |
b11896a5 | 3122 | NULL, /* sym_read_psymbols */ |
3e43a32a MS |
3123 | xcoff_symfile_finish, /* finished with file, cleanup */ |
3124 | xcoff_symfile_offsets, /* xlate offsets ext->int form */ | |
3125 | default_symfile_segments, /* Get segment information from a file. */ | |
3126 | aix_process_linenos, | |
3127 | default_symfile_relocate, /* Relocate a debug section. */ | |
00b5771c | 3128 | &psym_functions |
c906108c SS |
3129 | }; |
3130 | ||
63807e1d PA |
3131 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
3132 | extern initialize_file_ftype _initialize_xcoffread; | |
3133 | ||
c906108c | 3134 | void |
fba45db2 | 3135 | _initialize_xcoffread (void) |
c906108c | 3136 | { |
c5aa993b | 3137 | add_symtab_fns (&xcoff_sym_fns); |
c906108c | 3138 | } |